---
_id: '17562'
abstract:
- lang: eng
text: Ongoing and planned weak lensing (WL) surveys are becoming deep enough to
contain information on angular scales down to a few arcmin. To fully extract information
from these small scales, we must capture non-Gaussian features in the cosmological
WL signal while accurately accounting for baryonic effects. In this work, we account
for baryonic physics via a baryonic correction model that modifies the matter
distribution in dark matter-only N-body simulations, mimicking the effects of
galaxy formation and feedback. We implement this model in a large suite of ray-tracing
simulations, spanning a grid of cosmological models in Ωm−σ8 space. We then develop
a convolutional neural network (CNN) architecture to learn and constrain cosmological
and baryonic parameters simultaneously from the simulated WL convergence maps.
We find that in a Hyper-Suprime Cam-like survey, our CNN achieves a 1.7× tighter
constraint in Ωm−σ8 space (1σ area) than the power spectrum and 2.1× tighter than
the peak counts, showing that the CNN can efficiently extract non-Gaussian cosmological
information even while marginalizing over baryonic effects. When we combine our
CNN with the power spectrum, the baryonic effects degrade the constraint in Ωm−σ8
space by a factor of 2.4, compared to the much worse degradation by a factor of
4.7 or 3.7 from either method alone.
article_processing_charge: No
article_type: original
author:
- first_name: Tianhuan
full_name: Lu, Tianhuan
last_name: Lu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: José Manuel
full_name: Zorrilla Matilla, José Manuel
last_name: Zorrilla Matilla
citation:
ama: Lu T, Haiman Z, Zorrilla Matilla JM. Simultaneously constraining cosmology
and baryonic physics via deep learning from weak lensing. Monthly Notices of
the Royal Astronomical Society. 2022;511(1):1518-1528. doi:10.1093/mnras/stac161
apa: Lu, T., Haiman, Z., & Zorrilla Matilla, J. M. (2022). Simultaneously constraining
cosmology and baryonic physics via deep learning from weak lensing. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stac161
chicago: Lu, Tianhuan, Zoltán Haiman, and José Manuel Zorrilla Matilla. “Simultaneously
Constraining Cosmology and Baryonic Physics via Deep Learning from Weak Lensing.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2022. https://doi.org/10.1093/mnras/stac161.
ieee: T. Lu, Z. Haiman, and J. M. Zorrilla Matilla, “Simultaneously constraining
cosmology and baryonic physics via deep learning from weak lensing,” Monthly
Notices of the Royal Astronomical Society, vol. 511, no. 1. Oxford University
Press, pp. 1518–1528, 2022.
ista: Lu T, Haiman Z, Zorrilla Matilla JM. 2022. Simultaneously constraining cosmology
and baryonic physics via deep learning from weak lensing. Monthly Notices of the
Royal Astronomical Society. 511(1), 1518–1528.
mla: Lu, Tianhuan, et al. “Simultaneously Constraining Cosmology and Baryonic Physics
via Deep Learning from Weak Lensing.” Monthly Notices of the Royal Astronomical
Society, vol. 511, no. 1, Oxford University Press, 2022, pp. 1518–28, doi:10.1093/mnras/stac161.
short: T. Lu, Z. Haiman, J.M. Zorrilla Matilla, Monthly Notices of the Royal Astronomical
Society 511 (2022) 1518–1528.
date_created: 2024-09-05T12:02:56Z
date_published: 2022-01-28T00:00:00Z
date_updated: 2024-09-18T12:41:52Z
day: '28'
doi: 10.1093/mnras/stac161
extern: '1'
intvolume: ' 511'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac161
month: '01'
oa: 1
oa_version: Published Version
page: 1518-1528
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Simultaneously constraining cosmology and baryonic physics via deep learning
from weak lensing
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 511
year: '2022'
...
---
_id: '17563'
abstract:
- lang: eng
text: "In order to extract full cosmological information from next-generation large
and high-precision weak lensing (WL) surveys (e.g., Euclid, Roman, and LSST),
higher-order statistics that probe the small-scale, nonlinear regime of large-scale
structure (LSS) need to be utilized. WL peak counts, which trace overdensities
in the cosmic web, are one promising and simple statistic for constraining cosmological
parameters. The physical origin of WL peaks have previously been linked to dark
matter halos along the line of sight, and this peak-halo connection has been used
to develop various semianalytic halo-based models for predicting peak counts.
Here, we study the origin of WL peaks and the effectiveness of halo-based models
for WL peak counts using a suite of ray-tracing N-body simulations. We compare
WL peaks in convergence maps from the full simulations to those in maps created
from only particles associated with halos—the latter playing the role of a “perfect”
halo model. We find that, while halo-only contributions are able to replicate
peak counts qualitatively well, halos do not explain all WL peaks. Halos particularly
underpredict negative peaks, which are associated with local overdensities in
large-scale underdense regions along the line of sight. In addition, neglecting
nonhalo contributions to peaks counts leads to a significant bias on the parameters
(Ωm, \U0001D70E8) for surveys larger than ⪆100 deg2. We conclude that other elements
of the cosmic web, outside and far away from dark matter halos, need to be incorporated
into models of WL peaks in order to infer unbiased cosmological constraints."
article_number: '023505'
article_processing_charge: No
article_type: original
author:
- first_name: Alina
full_name: Sabyr, Alina
last_name: Sabyr
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: José Manuel Zorrilla
full_name: Matilla, José Manuel Zorrilla
last_name: Matilla
- first_name: Tianhuan
full_name: Lu, Tianhuan
last_name: Lu
citation:
ama: 'Sabyr A, Haiman Z, Matilla JMZ, Lu T. Cosmological constraints from weak lensing
peaks: Can halo models accurately predict peak counts? Physical Review D.
2022;105(2). doi:10.1103/physrevd.105.023505'
apa: 'Sabyr, A., Haiman, Z., Matilla, J. M. Z., & Lu, T. (2022). Cosmological
constraints from weak lensing peaks: Can halo models accurately predict peak counts?
Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.105.023505'
chicago: 'Sabyr, Alina, Zoltán Haiman, José Manuel Zorrilla Matilla, and Tianhuan
Lu. “Cosmological Constraints from Weak Lensing Peaks: Can Halo Models Accurately
Predict Peak Counts?” Physical Review D. American Physical Society, 2022.
https://doi.org/10.1103/physrevd.105.023505.'
ieee: 'A. Sabyr, Z. Haiman, J. M. Z. Matilla, and T. Lu, “Cosmological constraints
from weak lensing peaks: Can halo models accurately predict peak counts?,” Physical
Review D, vol. 105, no. 2. American Physical Society, 2022.'
ista: 'Sabyr A, Haiman Z, Matilla JMZ, Lu T. 2022. Cosmological constraints from
weak lensing peaks: Can halo models accurately predict peak counts? Physical Review
D. 105(2), 023505.'
mla: 'Sabyr, Alina, et al. “Cosmological Constraints from Weak Lensing Peaks: Can
Halo Models Accurately Predict Peak Counts?” Physical Review D, vol. 105,
no. 2, 023505, American Physical Society, 2022, doi:10.1103/physrevd.105.023505.'
short: A. Sabyr, Z. Haiman, J.M.Z. Matilla, T. Lu, Physical Review D 105 (2022).
date_created: 2024-09-05T12:03:46Z
date_published: 2022-01-07T00:00:00Z
date_updated: 2024-09-18T12:52:58Z
day: '07'
doi: 10.1103/physrevd.105.023505
extern: '1'
intvolume: ' 105'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1103/PhysRevD.105.023505
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review D
publication_identifier:
issn:
- 2470-0010
- 2470-0029
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Cosmological constraints from weak lensing peaks: Can halo models accurately
predict peak counts?'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 105
year: '2022'
...
---
_id: '17568'
abstract:
- lang: eng
text: Stellar-mass BHs (sBHs) are predicted to be embedded in active galactic nuclei
(AGN) disks due to gravitational drag and in-situ star formation. However, we
find that due to a high gas density in an AGN disk environment, compact objects
may rapidly grow to intermediate-mass BHs and deplete matter from the AGN disk
unless accretion is suppressed by some feedback process(es). These consequences
are inconsistent with AGN observations and the dynamics of the Galactic center.
Here we consider mechanical feedback mechanisms for the reduction of gas accretion.
Rapidly accreting sBHs launch winds and/or jets via the Blandford-Znajek mechanism,
which produce high-pressure shocks and cocoons. Such a shock and cocoon can spread
laterally in the plane of the disk, eject the outer regions of a circum-sBH disk
(CsBD) and puncture a hole in the AGN disk with horizontal size comparable to
the disk scale-height. Since the depletion timescale of the bound CsBD is much
shorter than the resupply timescale of gas to the sBH, the time-averaged accretion
rate onto sBHs is reduced by this process by a factor of ∼10--100. This feedback
mechanism can therefore help alleviate the sBH over-growth and AGN-disk depletion
problems. On the other hand, we find that cocoons of jets can unbind a large fraction
of the gas accreting in the disks of less massive SMBHs, which may help explain
the dearth of high-Eddington ratio AGNs with SMBH mass ≲105M⊙.
article_number: '41'
article_processing_charge: No
article_type: original
author:
- first_name: Hiromichi
full_name: Tagawa, Hiromichi
last_name: Tagawa
- first_name: Shigeo S.
full_name: Kimura, Shigeo S.
last_name: Kimura
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Rosalba
full_name: Perna, Rosalba
last_name: Perna
- first_name: Hidekazu
full_name: Tanaka, Hidekazu
last_name: Tanaka
- first_name: Imre
full_name: Bartos, Imre
last_name: Bartos
citation:
ama: Tagawa H, Kimura SS, Haiman Z, Perna R, Tanaka H, Bartos I. Can stellar-mass
black hole growth disrupt disks of active galactic nuclei? The role of mechanical
feedback. The Astrophysical Journal. 2022;927(1). doi:10.3847/1538-4357/ac45f8
apa: Tagawa, H., Kimura, S. S., Haiman, Z., Perna, R., Tanaka, H., & Bartos,
I. (2022). Can stellar-mass black hole growth disrupt disks of active galactic
nuclei? The role of mechanical feedback. The Astrophysical Journal. American
Astronomical Society. https://doi.org/10.3847/1538-4357/ac45f8
chicago: Tagawa, Hiromichi, Shigeo S. Kimura, Zoltán Haiman, Rosalba Perna, Hidekazu
Tanaka, and Imre Bartos. “Can Stellar-Mass Black Hole Growth Disrupt Disks of
Active Galactic Nuclei? The Role of Mechanical Feedback.” The Astrophysical
Journal. American Astronomical Society, 2022. https://doi.org/10.3847/1538-4357/ac45f8.
ieee: H. Tagawa, S. S. Kimura, Z. Haiman, R. Perna, H. Tanaka, and I. Bartos, “Can
stellar-mass black hole growth disrupt disks of active galactic nuclei? The role
of mechanical feedback,” The Astrophysical Journal, vol. 927, no. 1. American
Astronomical Society, 2022.
ista: Tagawa H, Kimura SS, Haiman Z, Perna R, Tanaka H, Bartos I. 2022. Can stellar-mass
black hole growth disrupt disks of active galactic nuclei? The role of mechanical
feedback. The Astrophysical Journal. 927(1), 41.
mla: Tagawa, Hiromichi, et al. “Can Stellar-Mass Black Hole Growth Disrupt Disks
of Active Galactic Nuclei? The Role of Mechanical Feedback.” The Astrophysical
Journal, vol. 927, no. 1, 41, American Astronomical Society, 2022, doi:10.3847/1538-4357/ac45f8.
short: H. Tagawa, S.S. Kimura, Z. Haiman, R. Perna, H. Tanaka, I. Bartos, The Astrophysical
Journal 927 (2022).
date_created: 2024-09-05T12:13:22Z
date_published: 2022-03-03T00:00:00Z
date_updated: 2024-09-18T14:57:06Z
day: '03'
doi: 10.3847/1538-4357/ac45f8
extern: '1'
intvolume: ' 927'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3847/1538-4357/ac45f8
month: '03'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
issn:
- 0004-637X
- 1538-4357
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Can stellar-mass black hole growth disrupt disks of active galactic nuclei?
The role of mechanical feedback
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 927
year: '2022'
...
---
_id: '17571'
abstract:
- lang: eng
text: 'The existence of 109 M⊙ supermassive black holes (SMBHs) within the first
billion years of the Universe remains a puzzle in our conventional understanding
of black hole formation and growth. Several suggested formation pathways for these
SMBHs lead to a heavy seed, with an initial black hole mass of 104–106 M⊙. This
can lead to an overly massive BH galaxy (OMBG), whose nuclear black hole’s mass
is comparable to or even greater than the surrounding stellar mass: the black
hole to stellar mass ratio is Mbh/M* ≫ 10−3, well in excess of the typical values
at lower redshift. We investigate how long these newborn BHs remain outliers in
the Mbh − M* relation, by exploring the subsequent evolution of two OMBGs previously
identified in the Renaissance simulations. We find that both OMBGs have Mbh/M*
> 1 during their entire life, from their birth at z ≈ 15 until they merge
with much more massive haloes at z ≈ 8. We find that the OMBGs are spatially resolvable
from their more massive, 1011 M⊙, neighbouring haloes until their mergers are
complete at z ≈ 8. This affords a window for future observations with JWST and
sensitive X-ray telescopes to diagnose the heavy-seed scenario, by detecting similar
OMBGs and establishing their uniquely high black hole-to-stellar mass ratio.'
article_processing_charge: No
article_type: original
author:
- first_name: Matthew T
full_name: Scoggins, Matthew T
last_name: Scoggins
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: John H
full_name: Wise, John H
last_name: Wise
citation:
ama: Scoggins MT, Haiman Z, Wise JH. How long do high redshift massive black hole
seeds remain outliers in black hole versus host galaxy relations? Monthly Notices
of the Royal Astronomical Society. 2022;519(2):2155-2168. doi:10.1093/mnras/stac3715
apa: Scoggins, M. T., Haiman, Z., & Wise, J. H. (2022). How long do high redshift
massive black hole seeds remain outliers in black hole versus host galaxy relations?
Monthly Notices of the Royal Astronomical Society. Oxford University Press.
https://doi.org/10.1093/mnras/stac3715
chicago: Scoggins, Matthew T, Zoltán Haiman, and John H Wise. “How Long Do High
Redshift Massive Black Hole Seeds Remain Outliers in Black Hole versus Host Galaxy
Relations?” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2022. https://doi.org/10.1093/mnras/stac3715.
ieee: M. T. Scoggins, Z. Haiman, and J. H. Wise, “How long do high redshift massive
black hole seeds remain outliers in black hole versus host galaxy relations?,”
Monthly Notices of the Royal Astronomical Society, vol. 519, no. 2. Oxford
University Press, pp. 2155–2168, 2022.
ista: Scoggins MT, Haiman Z, Wise JH. 2022. How long do high redshift massive black
hole seeds remain outliers in black hole versus host galaxy relations? Monthly
Notices of the Royal Astronomical Society. 519(2), 2155–2168.
mla: Scoggins, Matthew T., et al. “How Long Do High Redshift Massive Black Hole
Seeds Remain Outliers in Black Hole versus Host Galaxy Relations?” Monthly
Notices of the Royal Astronomical Society, vol. 519, no. 2, Oxford University
Press, 2022, pp. 2155–68, doi:10.1093/mnras/stac3715.
short: M.T. Scoggins, Z. Haiman, J.H. Wise, Monthly Notices of the Royal Astronomical
Society 519 (2022) 2155–2168.
date_created: 2024-09-05T12:14:22Z
date_published: 2022-12-20T00:00:00Z
date_updated: 2024-09-19T07:18:22Z
day: '20'
doi: 10.1093/mnras/stac3715
extern: '1'
intvolume: ' 519'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac3715
month: '12'
oa: 1
oa_version: Published Version
page: 2155-2168
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: How long do high redshift massive black hole seeds remain outliers in black
hole versus host galaxy relations?
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 519
year: '2022'
...
---
_id: '17572'
abstract:
- lang: eng
text: The LIGO–Virgo–KAGRA Collaboration recently detected gravitational waves (GWs)
from the merger of black hole–neutron star (BHNS) binary systems GW200105 and
GW200115. No coincident electromagnetic (EM) counterparts were detected. While
the mass ratio and BH spin in both systems were not sufficient to tidally disrupt
the NS outside the BH event horizon, other, magnetospheric mechanisms for EM emission
exist in this regime and depend sensitively on the NS magnetic field strength.
Combining GW measurements with EM flux upper limits, we place upper limits on
the NS surface magnetic field strength above which magnetospheric emission models
would have generated an observable EM counterpart. We consider fireball models
powered by the black hole battery mechanism, where energy is output in gamma rays
over ≲1 s. Consistency with no detection by Fermi-GBM or INTEGRAL SPI-ACS constrains
the NS surface magnetic field to ≲1015 G. Hence, joint GW detection and EM upper
limits rule out the theoretical possibility that the NSs in GW200105 and GW200115,
and the putative NS in GW190814, retain dipolar magnetic fields ≳1015 G until
merger. They also rule out formation scenarios where strongly magnetized magnetars
quickly merge with BHs. We alternatively rule out operation of the BH-battery-powered
fireball mechanism in these systems. This is the first multimessenger constraint
on NS magnetic fields in BHNS systems and a novel approach to probe fields at
this point in NS evolution. This demonstrates the constraining power that multimessenger
analyses of BHNS mergers have on BHNS formation scenarios, NS magnetic field evolution,
and the physics of BHNS magnetospheric interactions.
article_number: '56'
article_processing_charge: No
article_type: original
author:
- first_name: Daniel J.
full_name: D’Orazio, Daniel J.
last_name: D’Orazio
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Janna
full_name: Levin, Janna
last_name: Levin
- first_name: Johan
full_name: Samsing, Johan
last_name: Samsing
- first_name: Alejandro
full_name: Vigna-Gómez, Alejandro
last_name: Vigna-Gómez
citation:
ama: D’Orazio DJ, Haiman Z, Levin J, Samsing J, Vigna-Gómez A. Multimessenger constraints
on magnetic fields in merging black hole–neutron star binaries. The Astrophysical
Journal. 2022;927(1). doi:10.3847/1538-4357/ac4bdb
apa: D’Orazio, D. J., Haiman, Z., Levin, J., Samsing, J., & Vigna-Gómez, A.
(2022). Multimessenger constraints on magnetic fields in merging black hole–neutron
star binaries. The Astrophysical Journal. American Astronomical Society.
https://doi.org/10.3847/1538-4357/ac4bdb
chicago: D’Orazio, Daniel J., Zoltán Haiman, Janna Levin, Johan Samsing, and Alejandro
Vigna-Gómez. “Multimessenger Constraints on Magnetic Fields in Merging Black Hole–Neutron
Star Binaries.” The Astrophysical Journal. American Astronomical Society,
2022. https://doi.org/10.3847/1538-4357/ac4bdb.
ieee: D. J. D’Orazio, Z. Haiman, J. Levin, J. Samsing, and A. Vigna-Gómez, “Multimessenger
constraints on magnetic fields in merging black hole–neutron star binaries,” The
Astrophysical Journal, vol. 927, no. 1. American Astronomical Society, 2022.
ista: D’Orazio DJ, Haiman Z, Levin J, Samsing J, Vigna-Gómez A. 2022. Multimessenger
constraints on magnetic fields in merging black hole–neutron star binaries. The
Astrophysical Journal. 927(1), 56.
mla: D’Orazio, Daniel J., et al. “Multimessenger Constraints on Magnetic Fields
in Merging Black Hole–Neutron Star Binaries.” The Astrophysical Journal,
vol. 927, no. 1, 56, American Astronomical Society, 2022, doi:10.3847/1538-4357/ac4bdb.
short: D.J. D’Orazio, Z. Haiman, J. Levin, J. Samsing, A. Vigna-Gómez, The Astrophysical
Journal 927 (2022).
date_created: 2024-09-05T12:15:46Z
date_published: 2022-01-01T00:00:00Z
date_updated: 2024-09-19T07:25:13Z
doi: 10.3847/1538-4357/ac4bdb
extern: '1'
intvolume: ' 927'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3847/1538-4357/ac4bdb
month: '01'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
issn:
- 0004-637X
- 1538-4357
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multimessenger constraints on magnetic fields in merging black hole–neutron
star binaries
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 927
year: '2022'
...
---
_id: '17576'
abstract:
- lang: eng
text: Ultra-high angular resolution in astronomy has always been an important vehicle
for making fundamental discoveries. Recent results in direct imaging of the vicinity
of the supermassive black hole in the nucleus of the radio galaxy M87 by the millimeter
VLBI system Event Horizon Telescope and various pioneering results of the Space
VLBI mission RadioAstron provided new momentum in high angular resolution astrophysics.
In both mentioned cases, the angular resolution reached the values of about 10–20
microarcseconds (0.05–0.1 nanoradian). Further developments towards at least an
order of magnitude “sharper” values, at the level of 1 microarcsecond are dictated
by the needs of advanced astrophysical studies. The paper emphasis that these
higher values can only be achieved by placing millimeter and submillimeter wavelength
interferometric systems in space. A concept of such the system, called Terahertz
Exploration and Zooming-in for Astrophysics, has been proposed in the framework
of the ESA Call for White Papers for the Voyage 2050 long term plan in 2019. In
the current paper we present new science objectives for such the concept based
on recent results in studies of active galactic nuclei and supermassive black
holes. We also discuss several approaches for addressing technological challenges
of creating a millimeter/sub-millimeter wavelength interferometric system in space.
In particular, we consider a novel configuration of a space-borne millimeter/sub-millimeter
antenna which might resolve several bottlenecks in creating large precise mechanical
structures. The paper also presents an overview of prospective space-qualified
technologies of low-noise analogue front-end instrumentation for millimeter/sub-millimeter
telescopes. Data handling and processing instrumentation is another key technological
component of a sub-millimeter Space VLBI system. Requirements and possible implementation
options for this instrumentation are described as an extrapolation of the current
state-of-the-art Earth-based VLBI data transport and processing instrumentation.
The paper also briefly discusses approaches to the interferometric baseline state
vector determination and synchronisation and heterodyning system. The technology-oriented
sections of the paper do not aim at presenting a complete set of technological
solutions for sub-millimeter (terahertz) space-borne interferometers. Rather,
in combination with the original ESA Voyage 2050 White Paper, it sharpens the
case for the next generation microarcsecond-level imaging instruments and provides
starting points for further in-depth technology trade-off studies.
article_processing_charge: No
article_type: original
author:
- first_name: Leonid I.
full_name: Gurvits, Leonid I.
last_name: Gurvits
- first_name: Zsolt
full_name: Paragi, Zsolt
last_name: Paragi
- first_name: Ricardo I.
full_name: Amils, Ricardo I.
last_name: Amils
- first_name: Ilse
full_name: van Bemmel, Ilse
last_name: van Bemmel
- first_name: Paul
full_name: Boven, Paul
last_name: Boven
- first_name: Viviana
full_name: Casasola, Viviana
last_name: Casasola
- first_name: John
full_name: Conway, John
last_name: Conway
- first_name: Jordy
full_name: Davelaar, Jordy
last_name: Davelaar
- first_name: M. Carmen
full_name: Díez-González, M. Carmen
last_name: Díez-González
- first_name: Heino
full_name: Falcke, Heino
last_name: Falcke
- first_name: Rob
full_name: Fender, Rob
last_name: Fender
- first_name: Sándor
full_name: Frey, Sándor
last_name: Frey
- first_name: Christian M.
full_name: Fromm, Christian M.
last_name: Fromm
- first_name: Juan D.
full_name: Gallego-Puyol, Juan D.
last_name: Gallego-Puyol
- first_name: Cristina
full_name: García-Miró, Cristina
last_name: García-Miró
- first_name: Michael A.
full_name: Garrett, Michael A.
last_name: Garrett
- first_name: Marcello
full_name: Giroletti, Marcello
last_name: Giroletti
- first_name: Ciriaco
full_name: Goddi, Ciriaco
last_name: Goddi
- first_name: José L.
full_name: Gómez, José L.
last_name: Gómez
- first_name: Jeffrey
full_name: van der Gucht, Jeffrey
last_name: van der Gucht
- first_name: José Carlos
full_name: Guirado, José Carlos
last_name: Guirado
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Frank
full_name: Helmich, Frank
last_name: Helmich
- first_name: Ben
full_name: Hudson, Ben
last_name: Hudson
- first_name: Elizabeth
full_name: Humphreys, Elizabeth
last_name: Humphreys
- first_name: Violette
full_name: Impellizzeri, Violette
last_name: Impellizzeri
- first_name: Michael
full_name: Janssen, Michael
last_name: Janssen
- first_name: Michael D.
full_name: Johnson, Michael D.
last_name: Johnson
- first_name: Yuri Y.
full_name: Kovalev, Yuri Y.
last_name: Kovalev
- first_name: Michael
full_name: Kramer, Michael
last_name: Kramer
- first_name: Michael
full_name: Lindqvist, Michael
last_name: Lindqvist
- first_name: Hendrik
full_name: Linz, Hendrik
last_name: Linz
- first_name: Elisabetta
full_name: Liuzzo, Elisabetta
last_name: Liuzzo
- first_name: Andrei P.
full_name: Lobanov, Andrei P.
last_name: Lobanov
- first_name: Isaac
full_name: López-Fernández, Isaac
last_name: López-Fernández
- first_name: Inmaculada
full_name: Malo-Gómez, Inmaculada
last_name: Malo-Gómez
- first_name: Kunal
full_name: Masania, Kunal
last_name: Masania
- first_name: Yosuke
full_name: Mizuno, Yosuke
last_name: Mizuno
- first_name: Alexander V.
full_name: Plavin, Alexander V.
last_name: Plavin
- first_name: Raj T.
full_name: Rajan, Raj T.
last_name: Rajan
- first_name: Luciano
full_name: Rezzolla, Luciano
last_name: Rezzolla
- first_name: Freek
full_name: Roelofs, Freek
last_name: Roelofs
- first_name: Eduardo
full_name: Ros, Eduardo
last_name: Ros
- first_name: Kazi L.J.
full_name: Rygl, Kazi L.J.
last_name: Rygl
- first_name: Tuomas
full_name: Savolainen, Tuomas
last_name: Savolainen
- first_name: Karl
full_name: Schuster, Karl
last_name: Schuster
- first_name: Tiziana
full_name: Venturi, Tiziana
last_name: Venturi
- first_name: Marjolein
full_name: Verkouter, Marjolein
last_name: Verkouter
- first_name: Pablo
full_name: de Vicente, Pablo
last_name: de Vicente
- first_name: Pieter N.A.M.
full_name: Visser, Pieter N.A.M.
last_name: Visser
- first_name: Martina C.
full_name: Wiedner, Martina C.
last_name: Wiedner
- first_name: Maciek
full_name: Wielgus, Maciek
last_name: Wielgus
- first_name: Kaj
full_name: Wiik, Kaj
last_name: Wiik
- first_name: J. Anton
full_name: Zensus, J. Anton
last_name: Zensus
citation:
ama: Gurvits LI, Paragi Z, Amils RI, et al. The science case and challenges of space-borne
sub-millimeter interferometry. Acta Astronautica. 2022;196:314-333. doi:10.1016/j.actaastro.2022.04.020
apa: Gurvits, L. I., Paragi, Z., Amils, R. I., van Bemmel, I., Boven, P., Casasola,
V., … Zensus, J. A. (2022). The science case and challenges of space-borne sub-millimeter
interferometry. Acta Astronautica. Elsevier BV. https://doi.org/10.1016/j.actaastro.2022.04.020
chicago: Gurvits, Leonid I., Zsolt Paragi, Ricardo I. Amils, Ilse van Bemmel, Paul
Boven, Viviana Casasola, John Conway, et al. “The Science Case and Challenges
of Space-Borne Sub-Millimeter Interferometry.” Acta Astronautica. Elsevier
BV, 2022. https://doi.org/10.1016/j.actaastro.2022.04.020.
ieee: L. I. Gurvits et al., “The science case and challenges of space-borne
sub-millimeter interferometry,” Acta Astronautica, vol. 196. Elsevier BV,
pp. 314–333, 2022.
ista: Gurvits LI, Paragi Z, Amils RI, van Bemmel I, Boven P, Casasola V, Conway
J, Davelaar J, Díez-González MC, Falcke H, Fender R, Frey S, Fromm CM, Gallego-Puyol
JD, García-Miró C, Garrett MA, Giroletti M, Goddi C, Gómez JL, van der Gucht J,
Guirado JC, Haiman Z, Helmich F, Hudson B, Humphreys E, Impellizzeri V, Janssen
M, Johnson MD, Kovalev YY, Kramer M, Lindqvist M, Linz H, Liuzzo E, Lobanov AP,
López-Fernández I, Malo-Gómez I, Masania K, Mizuno Y, Plavin AV, Rajan RT, Rezzolla
L, Roelofs F, Ros E, Rygl KLJ, Savolainen T, Schuster K, Venturi T, Verkouter
M, de Vicente P, Visser PNAM, Wiedner MC, Wielgus M, Wiik K, Zensus JA. 2022.
The science case and challenges of space-borne sub-millimeter interferometry.
Acta Astronautica. 196, 314–333.
mla: Gurvits, Leonid I., et al. “The Science Case and Challenges of Space-Borne
Sub-Millimeter Interferometry.” Acta Astronautica, vol. 196, Elsevier BV,
2022, pp. 314–33, doi:10.1016/j.actaastro.2022.04.020.
short: L.I. Gurvits, Z. Paragi, R.I. Amils, I. van Bemmel, P. Boven, V. Casasola,
J. Conway, J. Davelaar, M.C. Díez-González, H. Falcke, R. Fender, S. Frey, C.M.
Fromm, J.D. Gallego-Puyol, C. García-Miró, M.A. Garrett, M. Giroletti, C. Goddi,
J.L. Gómez, J. van der Gucht, J.C. Guirado, Z. Haiman, F. Helmich, B. Hudson,
E. Humphreys, V. Impellizzeri, M. Janssen, M.D. Johnson, Y.Y. Kovalev, M. Kramer,
M. Lindqvist, H. Linz, E. Liuzzo, A.P. Lobanov, I. López-Fernández, I. Malo-Gómez,
K. Masania, Y. Mizuno, A.V. Plavin, R.T. Rajan, L. Rezzolla, F. Roelofs, E. Ros,
K.L.J. Rygl, T. Savolainen, K. Schuster, T. Venturi, M. Verkouter, P. de Vicente,
P.N.A.M. Visser, M.C. Wiedner, M. Wielgus, K. Wiik, J.A. Zensus, Acta Astronautica
196 (2022) 314–333.
date_created: 2024-09-05T12:19:08Z
date_published: 2022-05-06T00:00:00Z
date_updated: 2024-09-19T08:01:42Z
day: '06'
doi: 10.1016/j.actaastro.2022.04.020
extern: '1'
intvolume: ' 196'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.actaastro.2022.04.020
month: '05'
oa: 1
oa_version: Published Version
page: 314-333
publication: Acta Astronautica
publication_identifier:
issn:
- 0094-5765
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
scopus_import: '1'
status: public
title: The science case and challenges of space-borne sub-millimeter interferometry
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 196
year: '2022'
...
---
_id: '17580'
abstract:
- lang: eng
text: We present a study of optically selected dual Active Galactic Nuclei (AGN)
with projected separations of 3–97 kpc. Using multiwavelength (MWL) information
(optical, X-ray, mid-IR), we characterized the intrinsic nuclear properties of
this sample and compared them with those of isolated systems. Among the 124 X-ray-detected
AGN candidates, 52 appear in pairs and 72 as single X-ray sources. Through MWL
analysis, we confirmed the presence of the AGN in >80 per cent of the detected
targets in pairs (42 out of 52). X-ray spectral analysis confirms the trend of
increasing AGN luminosity with decreasing separation, suggesting that mergers
may have contributed to triggering more luminous AGN. Through X-ray/mid-IR ratio
versus X-ray colours, we estimated a fraction of Compton-thin AGN (with 1022 cm−2
< NH < 1024 cm−2) of about 80 per cent, while about 16 per cent
are Compton-thick sources (with NH > 1024 cm−2). These fractions of obscured
sources are larger than those found in samples of isolated AGN, confirming that
pairs of AGN show higher obscuration. This trend is further confirmed by comparing
the de-reddened [O iii] emission with the observed X-ray luminosity. However,
the derived fraction of Compton-thick sources in this sample at the early stages
of merging is lower than that reported for late-merging dual-AGN samples. Comparing
NH from X-rays with that derived from E(B − V) from narrow-line regions, we found
that the absorbing material is likely to be associated with the torus or broad-line
regions. We also explored the X-ray detection efficiency of dual-AGN candidates,
finding that, when observed properly (at on-axis positions and with long exposures),
X-ray data represent a powerful way to confirm and investigate dual-AGN systems.
article_processing_charge: No
author:
- first_name: Alessandra
full_name: De Rosa, Alessandra
last_name: De Rosa
- first_name: Cristian
full_name: Vignali, Cristian
last_name: Vignali
- first_name: Paola
full_name: Severgnini, Paola
last_name: Severgnini
- first_name: Stefano
full_name: Bianchi, Stefano
last_name: Bianchi
- first_name: Tamara
full_name: Bogdanović, Tamara
last_name: Bogdanović
- first_name: Maria
full_name: Charisi, Maria
last_name: Charisi
- first_name: Matteo
full_name: Guainazzi, Matteo
last_name: Guainazzi
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: S
full_name: Komossa, S
last_name: Komossa
- first_name: Zsolt
full_name: Paragi, Zsolt
last_name: Paragi
- first_name: Miguel
full_name: Perez-Torres, Miguel
last_name: Perez-Torres
- first_name: Enrico
full_name: Piconcelli, Enrico
last_name: Piconcelli
- first_name: Lorenzo
full_name: Ducci, Lorenzo
last_name: Ducci
- first_name: Manali
full_name: Parvatikar, Manali
last_name: Parvatikar
- first_name: Roberto
full_name: Serafinelli, Roberto
last_name: Serafinelli
citation:
ama: De Rosa A, Vignali C, Severgnini P, et al. The X-ray view of optically selected
dual AGN. Monthly Notices of the Royal Astronomical Society. 2022;519(4):5149-5160.
doi:10.1093/mnras/stac3664
apa: De Rosa, A., Vignali, C., Severgnini, P., Bianchi, S., Bogdanović, T., Charisi,
M., … Serafinelli, R. (2022). The X-ray view of optically selected dual AGN. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stac3664
chicago: De Rosa, Alessandra, Cristian Vignali, Paola Severgnini, Stefano Bianchi,
Tamara Bogdanović, Maria Charisi, Matteo Guainazzi, et al. “The X-Ray View of
Optically Selected Dual AGN.” Monthly Notices of the Royal Astronomical Society.
Oxford University Press, 2022. https://doi.org/10.1093/mnras/stac3664.
ieee: A. De Rosa et al., “The X-ray view of optically selected dual AGN,”
Monthly Notices of the Royal Astronomical Society, vol. 519, no. 4. Oxford
University Press, pp. 5149–5160, 2022.
ista: De Rosa A, Vignali C, Severgnini P, Bianchi S, Bogdanović T, Charisi M, Guainazzi
M, Haiman Z, Komossa S, Paragi Z, Perez-Torres M, Piconcelli E, Ducci L, Parvatikar
M, Serafinelli R. 2022. The X-ray view of optically selected dual AGN. Monthly
Notices of the Royal Astronomical Society. 519(4), 5149–5160.
mla: De Rosa, Alessandra, et al. “The X-Ray View of Optically Selected Dual AGN.”
Monthly Notices of the Royal Astronomical Society, vol. 519, no. 4, Oxford
University Press, 2022, pp. 5149–60, doi:10.1093/mnras/stac3664.
short: A. De Rosa, C. Vignali, P. Severgnini, S. Bianchi, T. Bogdanović, M. Charisi,
M. Guainazzi, Z. Haiman, S. Komossa, Z. Paragi, M. Perez-Torres, E. Piconcelli,
L. Ducci, M. Parvatikar, R. Serafinelli, Monthly Notices of the Royal Astronomical
Society 519 (2022) 5149–5160.
date_created: 2024-09-05T12:23:59Z
date_published: 2022-12-15T00:00:00Z
date_updated: 2024-09-19T11:24:50Z
day: '15'
doi: 10.1093/mnras/stac3664
extern: '1'
intvolume: ' 519'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac3664
month: '12'
oa: 1
oa_version: None
page: 5149-5160
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The X-ray view of optically selected dual AGN
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 519
year: '2022'
...
---
_id: '17582'
abstract:
- lang: eng
text: We use long-run, high-resolution hydrodynamics simulations to compute the
multi-wavelength light curves (LCs) from thermal disk emission around accreting
equal-mass supermassive black hole (BH) binaries, with a focus on revealing binary
eccentricity. LCs are obtained by modeling the disk thermodynamics with an adiabatic
equation of state, a local blackbody cooling prescription, and corrections to
approximate the effects of radiation pressure. We find that modulation of multi-band
LCs on the orbital time scale are generally in-phase (to within ∼2% of a binary
orbital period), but they contain pulse substructure in the time domain that is
not necessarily reflected in BH accretion rates M˙. We thus predict that binary-hosting
AGN will exhibit highly correlated, in-phase, periodic brightness modulations
in their low-energy disk emission. However, detectability of these modulations
in multi-wavelength observing campaigns could be seriously compromised because
observed stochastic variability in AGNs typically has a higher amplitude than
our proposed signal. It is possible that observations over temporal baselines
of many binary periods may make the signal more prominent, but this would need
to be analyzed carefully. If jet emission is predicted by M˙, then we predict
a weaker correlation with low-energy disk emission due to the differing sub-peak
structure. For the binary parameters we explore, we show that LC variability due
to hydrodynamics likely dominates Doppler brightening for all equal-mass binaries
with disk Mach numbers ≲20. A promising signature of eccentricity is weak or absent
"lump" periodicity. We find hints that a significant lag exists between M˙ and
low-energy disk emission for circular binaries, but they are in-phase for eccentric
binaries, which might explain some "orphan" blazar flares with no γ-ray counterpart.
article_number: '103010'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: John Ryan
full_name: Westernacher-Schneider, John Ryan
last_name: Westernacher-Schneider
- first_name: Jonathan
full_name: Zrake, Jonathan
last_name: Zrake
- first_name: Andrew
full_name: MacFadyen, Andrew
last_name: MacFadyen
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: Westernacher-Schneider JR, Zrake J, MacFadyen A, Haiman Z. Multiband light
curves from eccentric accreting supermassive black hole binaries. Physical
Review D. 2022;106(10). doi:10.1103/physrevd.106.103010
apa: Westernacher-Schneider, J. R., Zrake, J., MacFadyen, A., & Haiman, Z. (2022).
Multiband light curves from eccentric accreting supermassive black hole binaries.
Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.106.103010
chicago: Westernacher-Schneider, John Ryan, Jonathan Zrake, Andrew MacFadyen, and
Zoltán Haiman. “Multiband Light Curves from Eccentric Accreting Supermassive Black
Hole Binaries.” Physical Review D. American Physical Society, 2022. https://doi.org/10.1103/physrevd.106.103010.
ieee: J. R. Westernacher-Schneider, J. Zrake, A. MacFadyen, and Z. Haiman, “Multiband
light curves from eccentric accreting supermassive black hole binaries,” Physical
Review D, vol. 106, no. 10. American Physical Society, 2022.
ista: Westernacher-Schneider JR, Zrake J, MacFadyen A, Haiman Z. 2022. Multiband
light curves from eccentric accreting supermassive black hole binaries. Physical
Review D. 106(10), 103010.
mla: Westernacher-Schneider, John Ryan, et al. “Multiband Light Curves from Eccentric
Accreting Supermassive Black Hole Binaries.” Physical Review D, vol. 106,
no. 10, 103010, American Physical Society, 2022, doi:10.1103/physrevd.106.103010.
short: J.R. Westernacher-Schneider, J. Zrake, A. MacFadyen, Z. Haiman, Physical
Review D 106 (2022).
date_created: 2024-09-05T12:26:24Z
date_published: 2022-11-08T00:00:00Z
date_updated: 2024-09-19T11:36:36Z
day: '08'
doi: 10.1103/physrevd.106.103010
extern: '1'
external_id:
arxiv:
- '2111.06882'
intvolume: ' 106'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2111.06882
month: '11'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 2470-0010
- 2470-0029
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multiband light curves from eccentric accreting supermassive black hole binaries
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 106
year: '2022'
...
---
_id: '17588'
abstract:
- lang: eng
text: Supermassive stars (SMSs) with masses of M∗≃104--105 M⊙ are invoked as possible
seeds of high-redshift supermassive black holes, but it remains under debate whether
their protostar indeed acquires sufficient mass via gas accretion overcoming radiative
feedback. We investigate protostellar growth in dynamically heated atomic-cooling
haloes (ACHs) found in recent cosmological simulations, performing three-dimensional
radiation hydrodynamical (RHD) simulations that consider stellar evolution under
variable mass accretion. We find that one of the ACHs feeds the central protostar
at rates exceeding a critical value, above which the star evolves in a cool bloating
phase and hardly produces ionizing photons. Consequently, the stellar mass reaches
M∗≳104 M⊙ unimpeded by radiative feedback. In the other ACH, where the mass supply
rate is lower, the star spends most of its life as a hot main-sequence star, emitting
intense ionizing radiation. Then, the stellar mass growth is terminated around
500 M⊙ by photoevaporation of the circumstellar disk. A series of our RHD simulations
provide a formula of the final stellar mass determined either by stellar feedback
or their lifetime as a function of the mass supply rate from the parent cloud
in the absence of stellar radiation. Combining the results with the statistical
properties of SMS-forming clouds in high-redshift quasar progenitor haloes, we
construct a top-heavy mass distribution of primordial stars over M∗≃100--105 M⊙,
approximately following a power-law spectrum of ∝M−1.3∗ with a steeper decline
at M∗≳2×104 M⊙. Their massive BH remnants would be further fed via the dense debris
disk, powering "milli-quasars" with a bolometric luminosity of Lbol ≳ 1043 erg
s−1.
article_processing_charge: No
article_type: original
author:
- first_name: Daisuke
full_name: Toyouchi, Daisuke
last_name: Toyouchi
- first_name: Kohei
full_name: Inayoshi, Kohei
last_name: Inayoshi
- first_name: Wenxiu
full_name: Li, Wenxiu
last_name: Li
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Rolf
full_name: Kuiper, Rolf
last_name: Kuiper
citation:
ama: 'Toyouchi D, Inayoshi K, Li W, Haiman Z, Kuiper R. Radiative feedback on supermassive
star formation: the massive end of the population III initial mass function. Monthly
Notices of the Royal Astronomical Society. 2022;518(2):1601-1616. doi:10.1093/mnras/stac3191'
apa: 'Toyouchi, D., Inayoshi, K., Li, W., Haiman, Z., & Kuiper, R. (2022). Radiative
feedback on supermassive star formation: the massive end of the population III
initial mass function. Monthly Notices of the Royal Astronomical Society.
Oxford University Press. https://doi.org/10.1093/mnras/stac3191'
chicago: 'Toyouchi, Daisuke, Kohei Inayoshi, Wenxiu Li, Zoltán Haiman, and Rolf
Kuiper. “Radiative Feedback on Supermassive Star Formation: The Massive End of
the Population III Initial Mass Function.” Monthly Notices of the Royal Astronomical
Society. Oxford University Press, 2022. https://doi.org/10.1093/mnras/stac3191.'
ieee: 'D. Toyouchi, K. Inayoshi, W. Li, Z. Haiman, and R. Kuiper, “Radiative feedback
on supermassive star formation: the massive end of the population III initial
mass function,” Monthly Notices of the Royal Astronomical Society, vol.
518, no. 2. Oxford University Press, pp. 1601–1616, 2022.'
ista: 'Toyouchi D, Inayoshi K, Li W, Haiman Z, Kuiper R. 2022. Radiative feedback
on supermassive star formation: the massive end of the population III initial
mass function. Monthly Notices of the Royal Astronomical Society. 518(2), 1601–1616.'
mla: 'Toyouchi, Daisuke, et al. “Radiative Feedback on Supermassive Star Formation:
The Massive End of the Population III Initial Mass Function.” Monthly Notices
of the Royal Astronomical Society, vol. 518, no. 2, Oxford University Press,
2022, pp. 1601–16, doi:10.1093/mnras/stac3191.'
short: D. Toyouchi, K. Inayoshi, W. Li, Z. Haiman, R. Kuiper, Monthly Notices of
the Royal Astronomical Society 518 (2022) 1601–1616.
date_created: 2024-09-05T12:33:59Z
date_published: 2022-11-09T00:00:00Z
date_updated: 2024-09-19T12:06:18Z
day: '09'
doi: 10.1093/mnras/stac3191
extern: '1'
intvolume: ' 518'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stac3191
month: '11'
oa: 1
oa_version: Published Version
page: 1601-1616
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Radiative feedback on supermassive star formation: the massive end of the
population III initial mass function'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 518
year: '2022'
...
---
_id: '17599'
abstract:
- lang: eng
text: Next-generation weak lensing (WL) surveys, such as by the Vera Rubin Observatory,
the Roman Space Telescope, and the Euclid space mission, will supply vast amounts
of data probing small, highly non-linear scales. Extracting information from these
scales requires higher-order statistics and the controlling of related systematics
such as baryonic effects. To account for baryonic effects in cosmological analyses
at reduced computational cost, semi-analytic baryonic correction models (BCMs)
have been proposed. Here, we study the accuracy of a particular BCM (the A20-BCM)
for WL peak counts, a well-studied, simple, and effective higher-order statistic.
We compare WL peak counts generated from the full hydrodynamical simulation IllustrisTNG
and a baryon-corrected version of the corresponding dark matter-only simulation
IllustrisTNG-Dark. We apply galaxy shape noise matching depths reached by DES,
KiDS, HSC, LSST, Roman, and Euclid. We find that peak counts from the A20-BCM
are (i) accurate at per cent level for peaks with S/N < 4, (ii) statistically
indistinguishable from IllustrisTNG in most current and ongoing surveys, but (iii)
insufficient for deep future surveys covering the largest solid angles, such as
LSST and Euclid. We find that the BCM matches individual peaks accurately, but
underpredicts the amplitude of the highest peaks. We conclude that the A20-BCM
is a viable substitute for full hydrodynamical simulations in cosmological parameter
estimation from beyond-Gaussian statistics for ongoing and future surveys with
modest solid angles. For the largest surveys, the A20-BCM must be refined to provide
a more accurate match, especially to the highest peaks.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Max E
full_name: Lee, Max E
last_name: Lee
- first_name: Tianhuan
full_name: Lu, Tianhuan
last_name: Lu
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Jia
full_name: Liu, Jia
last_name: Liu
- first_name: Ken
full_name: Osato, Ken
last_name: Osato
citation:
ama: Lee ME, Lu T, Haiman Z, Liu J, Osato K. Comparing weak lensing peak counts
in baryonic correction models to hydrodynamical simulations. Monthly Notices
of the Royal Astronomical Society. 2022;519(1):573-584. doi:10.1093/mnras/stac3592
apa: Lee, M. E., Lu, T., Haiman, Z., Liu, J., & Osato, K. (2022). Comparing
weak lensing peak counts in baryonic correction models to hydrodynamical simulations.
Monthly Notices of the Royal Astronomical Society. Oxford University Press.
https://doi.org/10.1093/mnras/stac3592
chicago: Lee, Max E, Tianhuan Lu, Zoltán Haiman, Jia Liu, and Ken Osato. “Comparing
Weak Lensing Peak Counts in Baryonic Correction Models to Hydrodynamical Simulations.”
Monthly Notices of the Royal Astronomical Society. Oxford University Press,
2022. https://doi.org/10.1093/mnras/stac3592.
ieee: M. E. Lee, T. Lu, Z. Haiman, J. Liu, and K. Osato, “Comparing weak lensing
peak counts in baryonic correction models to hydrodynamical simulations,” Monthly
Notices of the Royal Astronomical Society, vol. 519, no. 1. Oxford University
Press, pp. 573–584, 2022.
ista: Lee ME, Lu T, Haiman Z, Liu J, Osato K. 2022. Comparing weak lensing peak
counts in baryonic correction models to hydrodynamical simulations. Monthly Notices
of the Royal Astronomical Society. 519(1), 573–584.
mla: Lee, Max E., et al. “Comparing Weak Lensing Peak Counts in Baryonic Correction
Models to Hydrodynamical Simulations.” Monthly Notices of the Royal Astronomical
Society, vol. 519, no. 1, Oxford University Press, 2022, pp. 573–84, doi:10.1093/mnras/stac3592.
short: M.E. Lee, T. Lu, Z. Haiman, J. Liu, K. Osato, Monthly Notices of the Royal
Astronomical Society 519 (2022) 573–584.
date_created: 2024-09-05T13:06:13Z
date_published: 2022-12-08T00:00:00Z
date_updated: 2024-09-23T13:13:25Z
day: '08'
doi: 10.1093/mnras/stac3592
extern: '1'
external_id:
arxiv:
- '2201.08320'
intvolume: ' 519'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.2201.08320'
month: '12'
oa: 1
oa_version: Preprint
page: 573-584
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Comparing weak lensing peak counts in baryonic correction models to hydrodynamical
simulations
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 519
year: '2022'
...
---
_id: '17608'
abstract:
- lang: eng
text: We study the long-term evolution of the global structure of axisymmetric accretion
flows onto a black hole (BH) at rates substantially higher than the Eddington
value (M˙Edd), performing two-dimensional hydrodynamical simulations with and
without radiative diffusion. In the high-accretion optically-thick limit, where
the radiation energy is efficiently trapped within the inflow, the accretion flow
becomes adiabatic and comprises of turbulent gas in the equatorial region and
strong bipolar outflows. As a result, the mass inflow rate decreases toward the
center as M˙in∝rp with p∼0.5−0.7 and a small fraction of the inflowing gas feeds
the nuclear BH. Thus, super-Eddington accretion is sustained only when a larger
amount of gas is supplied from larger radii at >100−1000 M˙Edd. The global structure
of the flow settles down to a quasi-steady state in millions of the orbital timescale
at the BH event horizon, which is >10−100 times longer than that addressed in
previous (magneto-)RHD simulation studies. Energy transport via radiative diffusion
accelerates the outflow near the poles in the inner region but does not change
the overall properties of the accretion flow compared to the cases without diffusion.
Based on our simulation results, we provide a mechanical feedback model for super-Eddington
accreting BHs. This can be applied as a sub-grid model in large-scale cosmological
simulations that do not sufficiently resolve galactic nuclei, and to the formation
of the heaviest gravitational-wave sources via accretion in dense environments.
article_number: '132'
article_processing_charge: No
article_type: original
author:
- first_name: Haojie
full_name: Hu, Haojie
last_name: Hu
- first_name: Kohei
full_name: Inayoshi, Kohei
last_name: Inayoshi
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Eliot
full_name: Quataert, Eliot
last_name: Quataert
- first_name: Rolf
full_name: Kuiper, Rolf
last_name: Kuiper
citation:
ama: 'Hu H, Inayoshi K, Haiman Z, Quataert E, Kuiper R. Long-term evolution of supercritical
black hole accretion with outflows: A subgrid feedback model for cosmological
simulations. The Astrophysical Journal. 2022;934(2). doi:10.3847/1538-4357/ac75d8'
apa: 'Hu, H., Inayoshi, K., Haiman, Z., Quataert, E., & Kuiper, R. (2022). Long-term
evolution of supercritical black hole accretion with outflows: A subgrid feedback
model for cosmological simulations. The Astrophysical Journal. American
Astronomical Society. https://doi.org/10.3847/1538-4357/ac75d8'
chicago: 'Hu, Haojie, Kohei Inayoshi, Zoltán Haiman, Eliot Quataert, and Rolf Kuiper.
“Long-Term Evolution of Supercritical Black Hole Accretion with Outflows: A Subgrid
Feedback Model for Cosmological Simulations.” The Astrophysical Journal.
American Astronomical Society, 2022. https://doi.org/10.3847/1538-4357/ac75d8.'
ieee: 'H. Hu, K. Inayoshi, Z. Haiman, E. Quataert, and R. Kuiper, “Long-term evolution
of supercritical black hole accretion with outflows: A subgrid feedback model
for cosmological simulations,” The Astrophysical Journal, vol. 934, no.
2. American Astronomical Society, 2022.'
ista: 'Hu H, Inayoshi K, Haiman Z, Quataert E, Kuiper R. 2022. Long-term evolution
of supercritical black hole accretion with outflows: A subgrid feedback model
for cosmological simulations. The Astrophysical Journal. 934(2), 132.'
mla: 'Hu, Haojie, et al. “Long-Term Evolution of Supercritical Black Hole Accretion
with Outflows: A Subgrid Feedback Model for Cosmological Simulations.” The
Astrophysical Journal, vol. 934, no. 2, 132, American Astronomical Society,
2022, doi:10.3847/1538-4357/ac75d8.'
short: H. Hu, K. Inayoshi, Z. Haiman, E. Quataert, R. Kuiper, The Astrophysical
Journal 934 (2022).
date_created: 2024-09-05T13:17:38Z
date_published: 2022-08-01T00:00:00Z
date_updated: 2024-09-23T14:23:12Z
day: '01'
doi: 10.3847/1538-4357/ac75d8
extern: '1'
intvolume: ' 934'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3847/1538-4357/ac75d8
month: '08'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
issn:
- 0004-637X
- 1538-4357
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Long-term evolution of supercritical black hole accretion with outflows: A
subgrid feedback model for cosmological simulations'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 934
year: '2022'
...
---
OA_place: repository
OA_type: green
_id: '17868'
abstract:
- lang: eng
text: Reversed conductance decay describes increasing conductance of a molecular
chain series with increasing chain length. Realizing reversed conductance decay
is an important step toward making long and highly conducting molecular wires.
Recent work has shown that one-dimensional topological insulators (1D TIs) can
exhibit reversed conductance decay due to their nontrivial edge states. The Su–Schrieffer–Heeger
(SSH) model for 1D TIs relates to the electronic structure of these isolated molecules
but not their electron transport properties as single-molecule junctions. Herein,
we use a tight-binding approach to demonstrate that polyacetylene and other diradicaloid
1D TIs show a reversed conductance decay at the short chain limit. We explain
these conductance trends by analyzing the impact of the edge states in these 1D
systems on the single-molecule junction transmission. Additionally, we discuss
how the self-energy from the electrode-molecule coupling and the on-site energy
of the edge sites can be tuned to create longer wires with reversed conductance
decays.
article_processing_charge: No
article_type: original
author:
- first_name: Liang
full_name: Li, Liang
last_name: Li
- first_name: Suman
full_name: Gunasekaran, Suman
last_name: Gunasekaran
- first_name: Yujing
full_name: Wei, Yujing
last_name: Wei
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Li L, Gunasekaran S, Wei Y, Nuckolls C, Venkataraman L. Reversed conductance
decay of 1D topological insulators by tight-binding analysis. The Journal of
Physical Chemistry Letters. 2022;13(41):9703-9710. doi:10.1021/acs.jpclett.2c02812
apa: Li, L., Gunasekaran, S., Wei, Y., Nuckolls, C., & Venkataraman, L. (2022).
Reversed conductance decay of 1D topological insulators by tight-binding analysis.
The Journal of Physical Chemistry Letters. American Chemical Society. https://doi.org/10.1021/acs.jpclett.2c02812
chicago: Li, Liang, Suman Gunasekaran, Yujing Wei, Colin Nuckolls, and Latha Venkataraman.
“Reversed Conductance Decay of 1D Topological Insulators by Tight-Binding Analysis.”
The Journal of Physical Chemistry Letters. American Chemical Society, 2022.
https://doi.org/10.1021/acs.jpclett.2c02812.
ieee: L. Li, S. Gunasekaran, Y. Wei, C. Nuckolls, and L. Venkataraman, “Reversed
conductance decay of 1D topological insulators by tight-binding analysis,” The
Journal of Physical Chemistry Letters, vol. 13, no. 41. American Chemical
Society, pp. 9703–9710, 2022.
ista: Li L, Gunasekaran S, Wei Y, Nuckolls C, Venkataraman L. 2022. Reversed conductance
decay of 1D topological insulators by tight-binding analysis. The Journal of Physical
Chemistry Letters. 13(41), 9703–9710.
mla: Li, Liang, et al. “Reversed Conductance Decay of 1D Topological Insulators
by Tight-Binding Analysis.” The Journal of Physical Chemistry Letters,
vol. 13, no. 41, American Chemical Society, 2022, pp. 9703–10, doi:10.1021/acs.jpclett.2c02812.
short: L. Li, S. Gunasekaran, Y. Wei, C. Nuckolls, L. Venkataraman, The Journal
of Physical Chemistry Letters 13 (2022) 9703–9710.
date_created: 2024-09-06T13:02:46Z
date_published: 2022-10-11T00:00:00Z
date_updated: 2024-12-10T09:21:49Z
day: '11'
doi: 10.1021/acs.jpclett.2c02812
extern: '1'
external_id:
pmid:
- '36219846'
intvolume: ' 13'
issue: '41'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.26434/chemrxiv-2022-b1fh9-v3
month: '10'
oa: 1
oa_version: Preprint
page: 9703-9710
pmid: 1
publication: The Journal of Physical Chemistry Letters
publication_identifier:
issn:
- 1948-7185
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Reversed conductance decay of 1D topological insulators by tight-binding analysis
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2022'
...
---
OA_place: repository
OA_type: green
_id: '17869'
abstract:
- lang: eng
text: The formation of carbon–carbon bonds with transition metal reagents serves
as a cornerstone of organic synthesis. Here, we show that the reactivity of an
otherwise kinetically inert transition metal complex can be induced by an external
electric field to affect a coupling reaction. These results highlight the importance
of electric field effects in reaction chemistry and offers a new strategy to modulate
organometallic reactivity.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Nicholas M.
full_name: Orchanian, Nicholas M.
last_name: Orchanian
- first_name: Sophia
full_name: Guizzo, Sophia
last_name: Guizzo
- first_name: Michael L.
full_name: Steigerwald, Michael L.
last_name: Steigerwald
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Orchanian NM, Guizzo S, Steigerwald ML, Nuckolls C, Venkataraman L. Electric-field-induced
coupling of aryl iodides with a nickel(0) complex. Chemical Communications.
2022;58(90):12556-12559. doi:10.1039/d2cc03671a
apa: Orchanian, N. M., Guizzo, S., Steigerwald, M. L., Nuckolls, C., & Venkataraman,
L. (2022). Electric-field-induced coupling of aryl iodides with a nickel(0) complex.
Chemical Communications. Royal Society of Chemistry. https://doi.org/10.1039/d2cc03671a
chicago: Orchanian, Nicholas M., Sophia Guizzo, Michael L. Steigerwald, Colin Nuckolls,
and Latha Venkataraman. “Electric-Field-Induced Coupling of Aryl Iodides with
a Nickel(0) Complex.” Chemical Communications. Royal Society of Chemistry,
2022. https://doi.org/10.1039/d2cc03671a.
ieee: N. M. Orchanian, S. Guizzo, M. L. Steigerwald, C. Nuckolls, and L. Venkataraman,
“Electric-field-induced coupling of aryl iodides with a nickel(0) complex,” Chemical
Communications, vol. 58, no. 90. Royal Society of Chemistry, pp. 12556–12559,
2022.
ista: Orchanian NM, Guizzo S, Steigerwald ML, Nuckolls C, Venkataraman L. 2022.
Electric-field-induced coupling of aryl iodides with a nickel(0) complex. Chemical
Communications. 58(90), 12556–12559.
mla: Orchanian, Nicholas M., et al. “Electric-Field-Induced Coupling of Aryl Iodides
with a Nickel(0) Complex.” Chemical Communications, vol. 58, no. 90, Royal
Society of Chemistry, 2022, pp. 12556–59, doi:10.1039/d2cc03671a.
short: N.M. Orchanian, S. Guizzo, M.L. Steigerwald, C. Nuckolls, L. Venkataraman,
Chemical Communications 58 (2022) 12556–12559.
date_created: 2024-09-06T13:03:38Z
date_published: 2022-10-10T00:00:00Z
date_updated: 2024-12-10T09:27:04Z
day: '10'
doi: 10.1039/d2cc03671a
extern: '1'
external_id:
pmid:
- '36245392'
intvolume: ' 58'
issue: '90'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.26434/chemrxiv-2022-lfnw1
month: '10'
oa: 1
oa_version: Preprint
page: 12556-12559
pmid: 1
publication: Chemical Communications
publication_identifier:
eissn:
- 1364-548X
issn:
- 1359-7345
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1039/d2cc03671a
scopus_import: '1'
status: public
title: Electric-field-induced coupling of aryl iodides with a nickel(0) complex
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 58
year: '2022'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '17870'
abstract:
- lang: eng
text: The electric fields created at solid–liquid interfaces are important in heterogeneous
catalysis. Here we describe the Ullmann coupling of aryl iodides on rough gold
surfaces, which we monitor in situ using the scanning tunneling microscope-based
break junction (STM-BJ) and ex situ using mass spectrometry and fluorescence spectroscopy.
We find that this Ullmann coupling reaction occurs only on rough gold surfaces
in polar solvents, the latter of which implicates interfacial electric fields.
These experimental observations are supported by density functional theory calculations
that elucidate the roles of surface roughness and local electric fields on the
reaction. More broadly, this touchstone study offers a facile method to access
and probe in real time an increasingly prominent yet incompletely understood mode
of catalysis.
article_processing_charge: Yes
article_type: original
author:
- first_name: Ilana B.
full_name: Stone, Ilana B.
last_name: Stone
- first_name: Rachel L.
full_name: Starr, Rachel L.
last_name: Starr
- first_name: Norah
full_name: Hoffmann, Norah
last_name: Hoffmann
- first_name: Xiao
full_name: Wang, Xiao
last_name: Wang
- first_name: Austin M.
full_name: Evans, Austin M.
last_name: Evans
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
- first_name: Tristan H.
full_name: Lambert, Tristan H.
last_name: Lambert
- first_name: Michael L.
full_name: Steigerwald, Michael L.
last_name: Steigerwald
- first_name: Timothy C.
full_name: Berkelbach, Timothy C.
last_name: Berkelbach
- first_name: Xavier
full_name: Roy, Xavier
last_name: Roy
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Stone IB, Starr RL, Hoffmann N, et al. Interfacial electric fields catalyze
Ullmann coupling reactions on gold surfaces. Chemical Science. 2022;13(36):10798-10805.
doi:10.1039/d2sc03780g
apa: Stone, I. B., Starr, R. L., Hoffmann, N., Wang, X., Evans, A. M., Nuckolls,
C., … Venkataraman, L. (2022). Interfacial electric fields catalyze Ullmann coupling
reactions on gold surfaces. Chemical Science. Royal Society of Chemistry.
https://doi.org/10.1039/d2sc03780g
chicago: Stone, Ilana B., Rachel L. Starr, Norah Hoffmann, Xiao Wang, Austin M.
Evans, Colin Nuckolls, Tristan H. Lambert, et al. “Interfacial Electric Fields
Catalyze Ullmann Coupling Reactions on Gold Surfaces.” Chemical Science.
Royal Society of Chemistry, 2022. https://doi.org/10.1039/d2sc03780g.
ieee: I. B. Stone et al., “Interfacial electric fields catalyze Ullmann coupling
reactions on gold surfaces,” Chemical Science, vol. 13, no. 36. Royal Society
of Chemistry, pp. 10798–10805, 2022.
ista: Stone IB, Starr RL, Hoffmann N, Wang X, Evans AM, Nuckolls C, Lambert TH,
Steigerwald ML, Berkelbach TC, Roy X, Venkataraman L. 2022. Interfacial electric
fields catalyze Ullmann coupling reactions on gold surfaces. Chemical Science.
13(36), 10798–10805.
mla: Stone, Ilana B., et al. “Interfacial Electric Fields Catalyze Ullmann Coupling
Reactions on Gold Surfaces.” Chemical Science, vol. 13, no. 36, Royal Society
of Chemistry, 2022, pp. 10798–805, doi:10.1039/d2sc03780g.
short: I.B. Stone, R.L. Starr, N. Hoffmann, X. Wang, A.M. Evans, C. Nuckolls, T.H.
Lambert, M.L. Steigerwald, T.C. Berkelbach, X. Roy, L. Venkataraman, Chemical
Science 13 (2022) 10798–10805.
date_created: 2024-09-06T13:04:27Z
date_published: 2022-09-01T00:00:00Z
date_updated: 2024-12-10T09:29:53Z
day: '01'
doi: 10.1039/d2sc03780g
extern: '1'
intvolume: ' 13'
issue: '36'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/3.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.1039/D2SC03780G
month: '09'
oa: 1
oa_version: Published Version
page: 10798-10805
publication: Chemical Science
publication_identifier:
eissn:
- 2041-6539
issn:
- 2041-6520
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interfacial electric fields catalyze Ullmann coupling reactions on gold surfaces
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/3.0/legalcode
name: Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
short: CC BY-NC (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2022'
...
---
OA_type: closed access
_id: '17871'
abstract:
- lang: eng
text: Single-molecule topological insulators are promising candidates as conducting
wires over nanometre length scales. A key advantage is their ability to exhibit
quasi-metallic transport, in contrast to conjugated molecular wires which typically
exhibit a low conductance that decays as the wire length increases. Here, we study
a family of oligophenylene-bridged bis(triarylamines) with tunable and stable
mono- or di-radicaloid character. These wires can undergo one- and two-electron
chemical oxidations to the corresponding mono-cation and di-cation, respectively.
We show that the oxidized wires exhibit reversed conductance decay with increasing
length, consistent with the expectation for Su–Schrieffer–Heeger-type one-dimensional
topological insulators. The 2.6-nm-long di-cation reported here displays a conductance
greater than 0.1G0, where G0 is the conductance quantum, a factor of 5,400 greater
than the neutral form. The observed conductance–length relationship is similar
between the mono-cation and di-cation series. Density functional theory calculations
elucidate how the frontier orbitals and delocalization of radicals facilitate
the observed non-classical quasi-metallic behaviour.
article_processing_charge: No
article_type: original
author:
- first_name: Liang
full_name: Li, Liang
last_name: Li
- first_name: Jonathan Z.
full_name: Low, Jonathan Z.
last_name: Low
- first_name: Jan
full_name: Wilhelm, Jan
last_name: Wilhelm
- first_name: Guanming
full_name: Liao, Guanming
last_name: Liao
- first_name: Suman
full_name: Gunasekaran, Suman
last_name: Gunasekaran
- first_name: Claudia R.
full_name: Prindle, Claudia R.
last_name: Prindle
- first_name: Rachel L.
full_name: Starr, Rachel L.
last_name: Starr
- first_name: Dorothea
full_name: Golze, Dorothea
last_name: Golze
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
- first_name: Michael L.
full_name: Steigerwald, Michael L.
last_name: Steigerwald
- first_name: Ferdinand
full_name: Evers, Ferdinand
last_name: Evers
- first_name: Luis M.
full_name: Campos, Luis M.
last_name: Campos
- first_name: Xiaodong
full_name: Yin, Xiaodong
last_name: Yin
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Li L, Low JZ, Wilhelm J, et al. Highly conducting single-molecule topological
insulators based on mono- and di-radical cations. Nature Chemistry. 2022;14(9):1061-1067.
doi:10.1038/s41557-022-00978-1
apa: Li, L., Low, J. Z., Wilhelm, J., Liao, G., Gunasekaran, S., Prindle, C. R.,
… Venkataraman, L. (2022). Highly conducting single-molecule topological insulators
based on mono- and di-radical cations. Nature Chemistry. Springer Nature.
https://doi.org/10.1038/s41557-022-00978-1
chicago: Li, Liang, Jonathan Z. Low, Jan Wilhelm, Guanming Liao, Suman Gunasekaran,
Claudia R. Prindle, Rachel L. Starr, et al. “Highly Conducting Single-Molecule
Topological Insulators Based on Mono- and Di-Radical Cations.” Nature Chemistry.
Springer Nature, 2022. https://doi.org/10.1038/s41557-022-00978-1.
ieee: L. Li et al., “Highly conducting single-molecule topological insulators
based on mono- and di-radical cations,” Nature Chemistry, vol. 14, no.
9. Springer Nature, pp. 1061–1067, 2022.
ista: Li L, Low JZ, Wilhelm J, Liao G, Gunasekaran S, Prindle CR, Starr RL, Golze
D, Nuckolls C, Steigerwald ML, Evers F, Campos LM, Yin X, Venkataraman L. 2022.
Highly conducting single-molecule topological insulators based on mono- and di-radical
cations. Nature Chemistry. 14(9), 1061–1067.
mla: Li, Liang, et al. “Highly Conducting Single-Molecule Topological Insulators
Based on Mono- and Di-Radical Cations.” Nature Chemistry, vol. 14, no.
9, Springer Nature, 2022, pp. 1061–67, doi:10.1038/s41557-022-00978-1.
short: L. Li, J.Z. Low, J. Wilhelm, G. Liao, S. Gunasekaran, C.R. Prindle, R.L.
Starr, D. Golze, C. Nuckolls, M.L. Steigerwald, F. Evers, L.M. Campos, X. Yin,
L. Venkataraman, Nature Chemistry 14 (2022) 1061–1067.
date_created: 2024-09-06T13:05:31Z
date_published: 2022-07-07T00:00:00Z
date_updated: 2024-12-10T09:37:45Z
day: '07'
doi: 10.1038/s41557-022-00978-1
extern: '1'
external_id:
pmid:
- '35798950'
intvolume: ' 14'
issue: '9'
language:
- iso: eng
month: '07'
oa_version: None
page: 1061-1067
pmid: 1
publication: Nature Chemistry
publication_identifier:
eissn:
- 1755-4349
issn:
- 1755-4330
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Highly conducting single-molecule topological insulators based on mono- and
di-radical cations
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2022'
...
---
_id: '17872'
abstract:
- lang: eng
text: Coherent tunneling electron transport through molecular wires has been theoretically
established as a temperature-independent process. Although several experimental
studies have shown counter examples, robust models to describe this temperature
dependence have not been thoroughly developed. Here, we demonstrate that dynamic
molecular structures lead to temperature-dependent conductance within coherent
tunneling regime. Using a custom-built variable-temperature scanning tunneling
microscopy break-junction instrument, we find that oligo[n]phenylenes exhibit
clear temperature-dependent conductance. Our calculations reveal that thermally
activated dihedral rotations allow these molecular wires to have a higher probability
of being in a planar conformation. As the tunneling occurs primarily through π-orbitals,
enhanced coplanarization substantially increases the time-averaged tunneling probability.
These calculations are consistent with the observation that more rotational pivot
points in longer molecular wires leads to larger temperature-dependence on conductance.
These findings reveal that molecular conductance within coherent and off-resonant
electron transport regimes can be controlled by manipulating dynamic molecular
structure.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Woojung
full_name: Lee, Woojung
last_name: Lee
- first_name: Shayan
full_name: Louie, Shayan
last_name: Louie
- first_name: Austin M.
full_name: Evans, Austin M.
last_name: Evans
- first_name: Nicholas M.
full_name: Orchanian, Nicholas M.
last_name: Orchanian
- first_name: Ilana B.
full_name: Stone, Ilana B.
last_name: Stone
- first_name: Boyuan
full_name: Zhang, Boyuan
last_name: Zhang
- first_name: Yujing
full_name: Wei, Yujing
last_name: Wei
- first_name: Xavier
full_name: Roy, Xavier
last_name: Roy
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Lee W, Louie S, Evans AM, et al. Increased molecular conductance in Oligo[n]phenylene
wires by thermally enhanced dihedral planarization. Nano Letters. 2022;22(12):4919-4924.
doi:10.1021/acs.nanolett.2c01549
apa: Lee, W., Louie, S., Evans, A. M., Orchanian, N. M., Stone, I. B., Zhang, B.,
… Venkataraman, L. (2022). Increased molecular conductance in Oligo[n]phenylene
wires by thermally enhanced dihedral planarization. Nano Letters. American
Chemical Society. https://doi.org/10.1021/acs.nanolett.2c01549
chicago: Lee, Woojung, Shayan Louie, Austin M. Evans, Nicholas M. Orchanian, Ilana
B. Stone, Boyuan Zhang, Yujing Wei, Xavier Roy, Colin Nuckolls, and Latha Venkataraman.
“Increased Molecular Conductance in Oligo[n]Phenylene Wires by Thermally Enhanced
Dihedral Planarization.” Nano Letters. American Chemical Society, 2022.
https://doi.org/10.1021/acs.nanolett.2c01549.
ieee: W. Lee et al., “Increased molecular conductance in Oligo[n]phenylene
wires by thermally enhanced dihedral planarization,” Nano Letters, vol.
22, no. 12. American Chemical Society, pp. 4919–4924, 2022.
ista: Lee W, Louie S, Evans AM, Orchanian NM, Stone IB, Zhang B, Wei Y, Roy X, Nuckolls
C, Venkataraman L. 2022. Increased molecular conductance in Oligo[n]phenylene
wires by thermally enhanced dihedral planarization. Nano Letters. 22(12), 4919–4924.
mla: Lee, Woojung, et al. “Increased Molecular Conductance in Oligo[n]Phenylene
Wires by Thermally Enhanced Dihedral Planarization.” Nano Letters, vol.
22, no. 12, American Chemical Society, 2022, pp. 4919–24, doi:10.1021/acs.nanolett.2c01549.
short: W. Lee, S. Louie, A.M. Evans, N.M. Orchanian, I.B. Stone, B. Zhang, Y. Wei,
X. Roy, C. Nuckolls, L. Venkataraman, Nano Letters 22 (2022) 4919–4924.
date_created: 2024-09-06T13:06:35Z
date_published: 2022-05-31T00:00:00Z
date_updated: 2024-12-10T09:40:39Z
day: '31'
doi: 10.1021/acs.nanolett.2c01549
extern: '1'
external_id:
pmid:
- '35640062'
intvolume: ' 22'
issue: '12'
language:
- iso: eng
month: '05'
oa_version: None
page: 4919-4924
pmid: 1
publication: Nano Letters
publication_identifier:
eissn:
- 1530-6992
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Increased molecular conductance in Oligo[n]phenylene wires by thermally enhanced
dihedral planarization
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 22
year: '2022'
...
---
OA_place: repository
OA_type: green
_id: '17873'
abstract:
- lang: eng
text: AbstractA critical overview of the theory
of the chirality‐induced spin selectivity (CISS) effect, that is, phenomena in
which the chirality of molecular species imparts significant spin selectivity
to various electron processes, is provided. Based on discussions in a recently
held workshop, and further work published since, the status of CISS effects—in
electron transmission, electron transport, and chemical reactions—is reviewed.
For each, a detailed discussion of the state‐of‐the‐art in theoretical understanding
is provided and remaining challenges and research opportunities are identified.
article_number: '2106629'
article_processing_charge: No
article_type: review
arxiv: 1
author:
- first_name: Ferdinand
full_name: Evers, Ferdinand
last_name: Evers
- first_name: Amnon
full_name: Aharony, Amnon
last_name: Aharony
- first_name: Nir
full_name: Bar‐Gill, Nir
last_name: Bar‐Gill
- first_name: Ora
full_name: Entin‐Wohlman, Ora
last_name: Entin‐Wohlman
- first_name: Per
full_name: Hedegård, Per
last_name: Hedegård
- first_name: Oded
full_name: Hod, Oded
last_name: Hod
- first_name: Pavel
full_name: Jelinek, Pavel
last_name: Jelinek
- first_name: Grzegorz
full_name: Kamieniarz, Grzegorz
last_name: Kamieniarz
- first_name: Mikhail
full_name: Lemeshko, Mikhail
last_name: Lemeshko
- first_name: Karen
full_name: Michaeli, Karen
last_name: Michaeli
- first_name: Vladimiro
full_name: Mujica, Vladimiro
last_name: Mujica
- first_name: Ron
full_name: Naaman, Ron
last_name: Naaman
- first_name: Yossi
full_name: Paltiel, Yossi
last_name: Paltiel
- first_name: Sivan
full_name: Refaely‐Abramson, Sivan
last_name: Refaely‐Abramson
- first_name: Oren
full_name: Tal, Oren
last_name: Tal
- first_name: Jos
full_name: Thijssen, Jos
last_name: Thijssen
- first_name: Michael
full_name: Thoss, Michael
last_name: Thoss
- first_name: Jan M.
full_name: van Ruitenbeek, Jan M.
last_name: van Ruitenbeek
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
- first_name: David H.
full_name: Waldeck, David H.
last_name: Waldeck
- first_name: Binghai
full_name: Yan, Binghai
last_name: Yan
- first_name: Leeor
full_name: Kronik, Leeor
last_name: Kronik
citation:
ama: 'Evers F, Aharony A, Bar‐Gill N, et al. Theory of chirality induced spin selectivity:
Progress and challenges. Advanced Materials. 2022;34(13). doi:10.1002/adma.202106629'
apa: 'Evers, F., Aharony, A., Bar‐Gill, N., Entin‐Wohlman, O., Hedegård, P., Hod,
O., … Kronik, L. (2022). Theory of chirality induced spin selectivity: Progress
and challenges. Advanced Materials. Wiley. https://doi.org/10.1002/adma.202106629'
chicago: 'Evers, Ferdinand, Amnon Aharony, Nir Bar‐Gill, Ora Entin‐Wohlman, Per
Hedegård, Oded Hod, Pavel Jelinek, et al. “Theory of Chirality Induced Spin Selectivity:
Progress and Challenges.” Advanced Materials. Wiley, 2022. https://doi.org/10.1002/adma.202106629.'
ieee: 'F. Evers et al., “Theory of chirality induced spin selectivity: Progress
and challenges,” Advanced Materials, vol. 34, no. 13. Wiley, 2022.'
ista: 'Evers F, Aharony A, Bar‐Gill N, Entin‐Wohlman O, Hedegård P, Hod O, Jelinek
P, Kamieniarz G, Lemeshko M, Michaeli K, Mujica V, Naaman R, Paltiel Y, Refaely‐Abramson
S, Tal O, Thijssen J, Thoss M, van Ruitenbeek JM, Venkataraman L, Waldeck DH,
Yan B, Kronik L. 2022. Theory of chirality induced spin selectivity: Progress
and challenges. Advanced Materials. 34(13), 2106629.'
mla: 'Evers, Ferdinand, et al. “Theory of Chirality Induced Spin Selectivity: Progress
and Challenges.” Advanced Materials, vol. 34, no. 13, 2106629, Wiley, 2022,
doi:10.1002/adma.202106629.'
short: F. Evers, A. Aharony, N. Bar‐Gill, O. Entin‐Wohlman, P. Hedegård, O. Hod,
P. Jelinek, G. Kamieniarz, M. Lemeshko, K. Michaeli, V. Mujica, R. Naaman, Y.
Paltiel, S. Refaely‐Abramson, O. Tal, J. Thijssen, M. Thoss, J.M. van Ruitenbeek,
L. Venkataraman, D.H. Waldeck, B. Yan, L. Kronik, Advanced Materials 34 (2022).
date_created: 2024-09-06T13:07:43Z
date_published: 2022-04-01T00:00:00Z
date_updated: 2024-12-10T09:43:10Z
day: '01'
doi: 10.1002/adma.202106629
extern: '1'
external_id:
arxiv:
- '2108.09998'
pmid:
- '35064943'
intvolume: ' 34'
issue: '13'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2108.09998
month: '04'
oa: 1
oa_version: Preprint
pmid: 1
publication: Advanced Materials
publication_identifier:
issn:
- 0935-9648
- 1521-4095
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Theory of chirality induced spin selectivity: Progress and challenges'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 34
year: '2022'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '17874'
abstract:
- lang: eng
text: Redox-active two-dimensional polymers (RA-2DPs) are promising lithium battery
organic cathode materials due to their regular porosities and high chemical stabilities.
However, weak electrical conductivities inherent to the non-conjugated molecular
motifs used thus far limit device performance and the practical relevance of these
materials. We herein address this problem by developing a modular approach to
construct π-conjugated RA-2DPs with a new polycyclic aromatic redox-active building
block PDI-DA. Efficient imine-condensation between PDI-DA and two polyfunctional
amine nodes followed by quantitative alkyl chain removal produced RA-2DPs TAPPy-PDI
and TAPB-PDI as conjugated, porous, polycrystalline networks. In-plane conjugation
and permanent porosity endow these materials with high electrical conductivity
and high ion diffusion rates. As such, both RA-2DPs function as organic cathode
materials with good rate performance and excellent cycling stability. Importantly,
the improved design enables higher areal mass-loadings than were previously available,
which drives a practical demonstration of TAPPy-PDI as the power source for a
series of LED lights. Collectively, this investigation discloses viable synthetic
methodologies and design principles for the realization of high-performance organic
cathode materials.
article_processing_charge: Yes
article_type: original
author:
- first_name: Zexin
full_name: Jin, Zexin
last_name: Jin
- first_name: Qian
full_name: Cheng, Qian
last_name: Cheng
- first_name: Austin M.
full_name: Evans, Austin M.
last_name: Evans
- first_name: Jesse
full_name: Gray, Jesse
last_name: Gray
- first_name: Ruiwen
full_name: Zhang, Ruiwen
last_name: Zhang
- first_name: Si Tong
full_name: Bao, Si Tong
last_name: Bao
- first_name: Fengkai
full_name: Wei, Fengkai
last_name: Wei
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
- first_name: Yuan
full_name: Yang, Yuan
last_name: Yang
- first_name: Colin
full_name: Nuckolls, Colin
last_name: Nuckolls
citation:
ama: Jin Z, Cheng Q, Evans AM, et al. π-Conjugated redox-active two-dimensional
polymers as organic cathode materials. Chemical Science. 2022;13(12):3533-3538.
doi:10.1039/d1sc07157b
apa: Jin, Z., Cheng, Q., Evans, A. M., Gray, J., Zhang, R., Bao, S. T., … Nuckolls,
C. (2022). π-Conjugated redox-active two-dimensional polymers as organic cathode
materials. Chemical Science. Royal Society of Chemistry. https://doi.org/10.1039/d1sc07157b
chicago: Jin, Zexin, Qian Cheng, Austin M. Evans, Jesse Gray, Ruiwen Zhang, Si Tong
Bao, Fengkai Wei, Latha Venkataraman, Yuan Yang, and Colin Nuckolls. “π-Conjugated
Redox-Active Two-Dimensional Polymers as Organic Cathode Materials.” Chemical
Science. Royal Society of Chemistry, 2022. https://doi.org/10.1039/d1sc07157b.
ieee: Z. Jin et al., “π-Conjugated redox-active two-dimensional polymers
as organic cathode materials,” Chemical Science, vol. 13, no. 12. Royal
Society of Chemistry, pp. 3533–3538, 2022.
ista: Jin Z, Cheng Q, Evans AM, Gray J, Zhang R, Bao ST, Wei F, Venkataraman L,
Yang Y, Nuckolls C. 2022. π-Conjugated redox-active two-dimensional polymers as
organic cathode materials. Chemical Science. 13(12), 3533–3538.
mla: Jin, Zexin, et al. “π-Conjugated Redox-Active Two-Dimensional Polymers as Organic
Cathode Materials.” Chemical Science, vol. 13, no. 12, Royal Society of
Chemistry, 2022, pp. 3533–38, doi:10.1039/d1sc07157b.
short: Z. Jin, Q. Cheng, A.M. Evans, J. Gray, R. Zhang, S.T. Bao, F. Wei, L. Venkataraman,
Y. Yang, C. Nuckolls, Chemical Science 13 (2022) 3533–3538.
date_created: 2024-09-06T13:08:38Z
date_published: 2022-03-08T00:00:00Z
date_updated: 2024-12-10T09:54:17Z
day: '08'
doi: 10.1039/d1sc07157b
extern: '1'
intvolume: ' 13'
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1039/D1SC07157B
month: '03'
oa: 1
oa_version: Published Version
page: 3533-3538
publication: Chemical Science
publication_identifier:
eissn:
- 2041-6539
issn:
- 2041-6520
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: π-Conjugated redox-active two-dimensional polymers as organic cathode materials
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/3.0/legalcode
name: Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
short: CC BY-NC (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2022'
...
---
OA_type: closed access
_id: '17875'
abstract:
- lang: eng
text: Nanoscale plasmonic structures have been primarily characterized through scattering
studies, but electroluminescence offers an exciting alternative from a technological
standpoint by removing the need for optical excitation. In sub-nanometer biased
junctions, electronic tunneling can serve as the excitation source for plasmon-coupled
electroluminescence, but the gap size dependence to this plasmonic enhancement
has not been characterized. Here, we simultaneously probe the electroluminescence
and conductance of Au tunnel junctions. We find that plasmonic enhancement increases
as the gap size is reduced for junctions biased between 1.4 and 1.8 V, consistent
with the behavior of charge transfer plasmons. At biases above 1.9 V, we see decreasing
plasmonic enhancement with the decreasing gap, showing quenching due to tunneling
in remarkable agreement with the trends observed for high energy plasmons in scattering
experiments. Critically, we find that plasmonic enhancement of electroluminescence
is gap size-dependent and, furthermore, is in agreement with the nature of modes
excited by scattering.
article_processing_charge: No
article_type: original
author:
- first_name: Angela L.
full_name: Paoletta, Angela L.
last_name: Paoletta
- first_name: E-Dean
full_name: Fung, E-Dean
last_name: Fung
- first_name: Latha
full_name: Venkataraman, Latha
id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
last_name: Venkataraman
orcid: 0000-0002-6957-6089
citation:
ama: Paoletta AL, Fung E-D, Venkataraman L. Gap size-dependent plasmonic enhancement
in electroluminescent tunnel junctions. ACS Photonics. 2022;9(2):688-693.
doi:10.1021/acsphotonics.1c01757
apa: Paoletta, A. L., Fung, E.-D., & Venkataraman, L. (2022). Gap size-dependent
plasmonic enhancement in electroluminescent tunnel junctions. ACS Photonics.
American Chemical Society. https://doi.org/10.1021/acsphotonics.1c01757
chicago: Paoletta, Angela L., E-Dean Fung, and Latha Venkataraman. “Gap Size-Dependent
Plasmonic Enhancement in Electroluminescent Tunnel Junctions.” ACS Photonics.
American Chemical Society, 2022. https://doi.org/10.1021/acsphotonics.1c01757.
ieee: A. L. Paoletta, E.-D. Fung, and L. Venkataraman, “Gap size-dependent plasmonic
enhancement in electroluminescent tunnel junctions,” ACS Photonics, vol.
9, no. 2. American Chemical Society, pp. 688–693, 2022.
ista: Paoletta AL, Fung E-D, Venkataraman L. 2022. Gap size-dependent plasmonic
enhancement in electroluminescent tunnel junctions. ACS Photonics. 9(2), 688–693.
mla: Paoletta, Angela L., et al. “Gap Size-Dependent Plasmonic Enhancement in Electroluminescent
Tunnel Junctions.” ACS Photonics, vol. 9, no. 2, American Chemical Society,
2022, pp. 688–93, doi:10.1021/acsphotonics.1c01757.
short: A.L. Paoletta, E.-D. Fung, L. Venkataraman, ACS Photonics 9 (2022) 688–693.
date_created: 2024-09-06T13:09:45Z
date_published: 2022-01-14T00:00:00Z
date_updated: 2024-12-10T10:01:03Z
day: '14'
doi: 10.1021/acsphotonics.1c01757
extern: '1'
intvolume: ' 9'
issue: '2'
language:
- iso: eng
month: '01'
oa_version: None
page: 688-693
publication: ACS Photonics
publication_identifier:
issn:
- 2330-4022
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Gap size-dependent plasmonic enhancement in electroluminescent tunnel junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2022'
...
---
_id: '18191'
abstract:
- lang: eng
text: 'Large-scale quantum devices provide insights beyond the reach of classical
simulations. However, for a reliable and verifiable quantum simulation, the building
blocks of the quantum device require exquisite benchmarking. This benchmarking
of large-scale dynamical quantum systems represents a major challenge due to lack
of efficient tools for their simulation. Here, we present a scalable algorithm
based on neural networks for Hamiltonian tomography in out-of-equilibrium quantum
systems. We illustrate our approach using a model for a forefront quantum simulation
platform: ultracold atoms in optical lattices. Specifically, we show that our
algorithm is able to reconstruct the Hamiltonian of an arbitrary sized bosonic
ladder system using an accessible amount of experimental measurements. We are
able to significantly increase the previously known parameter precision.'
article_number: '023302'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Agnes
full_name: Valenti, Agnes
last_name: Valenti
- first_name: Guliuxin
full_name: Jin, Guliuxin
last_name: Jin
- first_name: Julian
full_name: Leonard, Julian
id: b75b3f45-7995-11ef-9bfd-9a9cd02c3577
last_name: Leonard
- first_name: Sebastian D.
full_name: Huber, Sebastian D.
last_name: Huber
- first_name: Eliska
full_name: Greplova, Eliska
last_name: Greplova
citation:
ama: Valenti A, Jin G, Leonard J, Huber SD, Greplova E. Scalable Hamiltonian learning
for large-scale out-of-equilibrium quantum dynamics. Physical Review A.
2022;105(2). doi:10.1103/physreva.105.023302
apa: Valenti, A., Jin, G., Leonard, J., Huber, S. D., & Greplova, E. (2022).
Scalable Hamiltonian learning for large-scale out-of-equilibrium quantum dynamics.
Physical Review A. American Physical Society. https://doi.org/10.1103/physreva.105.023302
chicago: Valenti, Agnes, Guliuxin Jin, Julian Leonard, Sebastian D. Huber, and Eliska
Greplova. “Scalable Hamiltonian Learning for Large-Scale out-of-Equilibrium Quantum
Dynamics.” Physical Review A. American Physical Society, 2022. https://doi.org/10.1103/physreva.105.023302.
ieee: A. Valenti, G. Jin, J. Leonard, S. D. Huber, and E. Greplova, “Scalable Hamiltonian
learning for large-scale out-of-equilibrium quantum dynamics,” Physical Review
A, vol. 105, no. 2. American Physical Society, 2022.
ista: Valenti A, Jin G, Leonard J, Huber SD, Greplova E. 2022. Scalable Hamiltonian
learning for large-scale out-of-equilibrium quantum dynamics. Physical Review
A. 105(2), 023302.
mla: Valenti, Agnes, et al. “Scalable Hamiltonian Learning for Large-Scale out-of-Equilibrium
Quantum Dynamics.” Physical Review A, vol. 105, no. 2, 023302, American
Physical Society, 2022, doi:10.1103/physreva.105.023302.
short: A. Valenti, G. Jin, J. Leonard, S.D. Huber, E. Greplova, Physical Review
A 105 (2022).
date_created: 2024-10-07T11:46:53Z
date_published: 2022-02-01T00:00:00Z
date_updated: 2024-10-08T10:00:23Z
day: '01'
doi: 10.1103/physreva.105.023302
extern: '1'
external_id:
arxiv:
- '2103.01240'
intvolume: ' 105'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2103.01240
month: '02'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Scalable Hamiltonian learning for large-scale out-of-equilibrium quantum dynamics
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 105
year: '2022'
...