--- _id: '17525' abstract: - lang: eng text: Since the very beginning of astronomy the location of objects on the sky has been a fundamental observational quantity that has been taken for granted. While precise two dimensional positional information is easy to obtain for observations in the electromagnetic spectrum, the positional accuracy of current and near future gravitational wave detectors is limited to between tens and hundreds of square degrees, which makes it extremely challenging to identify the host galaxies of gravitational wave events or to detect any electromagnetic counterparts. Gravitational wave observations provide information on source properties that is complementary to the information in any associated electromagnetic emission. Observing systems with multiple messengers thus has scientific potential much greater than the sum of its parts. A gravitational wave detector with higher angular resolution would significantly increase the prospects for finding the hosts of gravitational wave sources and triggering a multi-messenger follow-up campaign. An observatory with arcminute precision or better could be realised within the Voyage 2050 programme by creating a large baseline interferometer array in space and would have transformative scientific potential. Precise positional information of standard sirens would enable precision measurements of cosmological parameters and offer new insights on structure formation; a high angular resolution gravitational wave observatory would allow the detection of a stochastic background and resolution of the anisotropies within it; it would also allow the study of accretion processes around black holes; and it would have tremendous potential for tests of modified gravity and the discovery of physics beyond the Standard Model. article_processing_charge: No article_type: original author: - first_name: John full_name: Baker, John last_name: Baker - first_name: Tessa full_name: Baker, Tessa last_name: Baker - first_name: Carmelita full_name: Carbone, Carmelita last_name: Carbone - first_name: Giuseppe full_name: Congedo, Giuseppe last_name: Congedo - first_name: Carlo full_name: Contaldi, Carlo last_name: Contaldi - first_name: Irina full_name: Dvorkin, Irina last_name: Dvorkin - first_name: Jonathan full_name: Gair, Jonathan last_name: Gair - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: David F. full_name: Mota, David F. last_name: Mota - first_name: Arianna full_name: Renzini, Arianna last_name: Renzini - first_name: Ernst-Jan full_name: Buis, Ernst-Jan last_name: Buis - first_name: Giulia full_name: Cusin, Giulia last_name: Cusin - first_name: Jose Maria full_name: Ezquiaga, Jose Maria last_name: Ezquiaga - first_name: Guido full_name: Mueller, Guido last_name: Mueller - first_name: Mauro full_name: Pieroni, Mauro last_name: Pieroni - first_name: John full_name: Quenby, John last_name: Quenby - first_name: Angelo full_name: Ricciardone, Angelo last_name: Ricciardone - first_name: Ippocratis D. full_name: Saltas, Ippocratis D. last_name: Saltas - first_name: Lijing full_name: Shao, Lijing last_name: Shao - first_name: Nicola full_name: Tamanini, Nicola last_name: Tamanini - first_name: Gianmassimo full_name: Tasinato, Gianmassimo last_name: Tasinato - first_name: Miguel full_name: Zumalacárregui, Miguel last_name: Zumalacárregui citation: ama: Baker J, Baker T, Carbone C, et al. High angular resolution gravitational wave astronomy. Experimental Astronomy. 2021;51(3):1441-1470. doi:10.1007/s10686-021-09712-0 apa: Baker, J., Baker, T., Carbone, C., Congedo, G., Contaldi, C., Dvorkin, I., … Zumalacárregui, M. (2021). High angular resolution gravitational wave astronomy. Experimental Astronomy. Springer Science and Business Media LLC. https://doi.org/10.1007/s10686-021-09712-0 chicago: Baker, John, Tessa Baker, Carmelita Carbone, Giuseppe Congedo, Carlo Contaldi, Irina Dvorkin, Jonathan Gair, et al. “High Angular Resolution Gravitational Wave Astronomy.” Experimental Astronomy. Springer Science and Business Media LLC, 2021. https://doi.org/10.1007/s10686-021-09712-0. ieee: J. Baker et al., “High angular resolution gravitational wave astronomy,” Experimental Astronomy, vol. 51, no. 3. Springer Science and Business Media LLC, pp. 1441–1470, 2021. ista: Baker J, Baker T, Carbone C, Congedo G, Contaldi C, Dvorkin I, Gair J, Haiman Z, Mota DF, Renzini A, Buis E-J, Cusin G, Ezquiaga JM, Mueller G, Pieroni M, Quenby J, Ricciardone A, Saltas ID, Shao L, Tamanini N, Tasinato G, Zumalacárregui M. 2021. High angular resolution gravitational wave astronomy. Experimental Astronomy. 51(3), 1441–1470. mla: Baker, John, et al. “High Angular Resolution Gravitational Wave Astronomy.” Experimental Astronomy, vol. 51, no. 3, Springer Science and Business Media LLC, 2021, pp. 1441–70, doi:10.1007/s10686-021-09712-0. short: J. Baker, T. Baker, C. Carbone, G. Congedo, C. Contaldi, I. Dvorkin, J. Gair, Z. Haiman, D.F. Mota, A. Renzini, E.-J. Buis, G. Cusin, J.M. Ezquiaga, G. Mueller, M. Pieroni, J. Quenby, A. Ricciardone, I.D. Saltas, L. Shao, N. Tamanini, G. Tasinato, M. Zumalacárregui, Experimental Astronomy 51 (2021) 1441–1470. date_created: 2024-09-05T09:28:30Z date_published: 2021-05-04T00:00:00Z date_updated: 2024-09-11T08:17:16Z day: '04' doi: 10.1007/s10686-021-09712-0 extern: '1' intvolume: ' 51' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1007/s10686-021-09712-0 month: '05' oa: 1 oa_version: Published Version page: 1441-1470 publication: Experimental Astronomy publication_identifier: issn: - 0922-6435 - 1572-9508 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' scopus_import: '1' status: public title: High angular resolution gravitational wave astronomy type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 51 year: '2021' ... --- _id: '17534' abstract: - lang: eng text: We propose a space-based interferometer surveying the gravitational wave (GW) sky in the milli-Hz to μ-Hz frequency range. By the 2040s, the μ-Hz frequency band, bracketed in between the Laser Interferometer Space Antenna (LISA) and pulsar timing arrays, will constitute the largest gap in the coverage of the astrophysically relevant GW spectrum. Yet many outstanding questions related to astrophysics and cosmology are best answered by GW observations in this band. We show that a μ-Hz GW detector will be a truly overarching observatory for the scientific community at large, greatly extending the potential of LISA. Conceived to detect massive black hole binaries from their early inspiral with high signal-to-noise ratio, and low-frequency stellar binaries in the Galaxy, this instrument will be a cornerstone for multimessenger astronomy from the solar neighbourhood to the high-redshift Universe. article_processing_charge: No article_type: original author: - first_name: Alberto full_name: Sesana, Alberto last_name: Sesana - first_name: Natalia full_name: Korsakova, Natalia last_name: Korsakova - first_name: Manuel Arca full_name: Sedda, Manuel Arca last_name: Sedda - first_name: Vishal full_name: Baibhav, Vishal last_name: Baibhav - first_name: Enrico full_name: Barausse, Enrico last_name: Barausse - first_name: Simon full_name: Barke, Simon last_name: Barke - first_name: Emanuele full_name: Berti, Emanuele last_name: Berti - first_name: Matteo full_name: Bonetti, Matteo last_name: Bonetti - first_name: Pedro R. full_name: Capelo, Pedro R. last_name: Capelo - first_name: Chiara full_name: Caprini, Chiara last_name: Caprini - first_name: Juan full_name: Garcia-Bellido, Juan last_name: Garcia-Bellido - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Karan full_name: Jani, Karan last_name: Jani - first_name: Oliver full_name: Jennrich, Oliver last_name: Jennrich - first_name: Peter H. full_name: Johansson, Peter H. last_name: Johansson - first_name: Fazeel Mahmood full_name: Khan, Fazeel Mahmood last_name: Khan - first_name: Valeriya full_name: Korol, Valeriya last_name: Korol - first_name: Astrid full_name: Lamberts, Astrid last_name: Lamberts - first_name: Alessandro full_name: Lupi, Alessandro last_name: Lupi - first_name: Alberto full_name: Mangiagli, Alberto last_name: Mangiagli - first_name: Lucio full_name: Mayer, Lucio last_name: Mayer - first_name: Germano full_name: Nardini, Germano last_name: Nardini - first_name: Fabio full_name: Pacucci, Fabio last_name: Pacucci - first_name: Antoine full_name: Petiteau, Antoine last_name: Petiteau - first_name: Alvise full_name: Raccanelli, Alvise last_name: Raccanelli - first_name: Surjeet full_name: Rajendran, Surjeet last_name: Rajendran - first_name: John full_name: Regan, John last_name: Regan - first_name: Lijing full_name: Shao, Lijing last_name: Shao - first_name: Alessandro full_name: Spallicci, Alessandro last_name: Spallicci - first_name: Nicola full_name: Tamanini, Nicola last_name: Tamanini - first_name: Marta full_name: Volonteri, Marta last_name: Volonteri - first_name: Niels full_name: Warburton, Niels last_name: Warburton - first_name: Kaze full_name: Wong, Kaze last_name: Wong - first_name: Miguel full_name: Zumalacarregui, Miguel last_name: Zumalacarregui citation: ama: Sesana A, Korsakova N, Sedda MA, et al. Unveiling the gravitational universe at μ-Hz frequencies. Experimental Astronomy. 2021;51(3):1333-1383. doi:10.1007/s10686-021-09709-9 apa: Sesana, A., Korsakova, N., Sedda, M. A., Baibhav, V., Barausse, E., Barke, S., … Zumalacarregui, M. (2021). Unveiling the gravitational universe at μ-Hz frequencies. Experimental Astronomy. Springer Science and Business Media LLC. https://doi.org/10.1007/s10686-021-09709-9 chicago: Sesana, Alberto, Natalia Korsakova, Manuel Arca Sedda, Vishal Baibhav, Enrico Barausse, Simon Barke, Emanuele Berti, et al. “Unveiling the Gravitational Universe at μ-Hz Frequencies.” Experimental Astronomy. Springer Science and Business Media LLC, 2021. https://doi.org/10.1007/s10686-021-09709-9. ieee: A. Sesana et al., “Unveiling the gravitational universe at μ-Hz frequencies,” Experimental Astronomy, vol. 51, no. 3. Springer Science and Business Media LLC, pp. 1333–1383, 2021. ista: Sesana A, Korsakova N, Sedda MA, Baibhav V, Barausse E, Barke S, Berti E, Bonetti M, Capelo PR, Caprini C, Garcia-Bellido J, Haiman Z, Jani K, Jennrich O, Johansson PH, Khan FM, Korol V, Lamberts A, Lupi A, Mangiagli A, Mayer L, Nardini G, Pacucci F, Petiteau A, Raccanelli A, Rajendran S, Regan J, Shao L, Spallicci A, Tamanini N, Volonteri M, Warburton N, Wong K, Zumalacarregui M. 2021. Unveiling the gravitational universe at μ-Hz frequencies. Experimental Astronomy. 51(3), 1333–1383. mla: Sesana, Alberto, et al. “Unveiling the Gravitational Universe at μ-Hz Frequencies.” Experimental Astronomy, vol. 51, no. 3, Springer Science and Business Media LLC, 2021, pp. 1333–83, doi:10.1007/s10686-021-09709-9. short: A. Sesana, N. Korsakova, M.A. Sedda, V. Baibhav, E. Barausse, S. Barke, E. Berti, M. Bonetti, P.R. Capelo, C. Caprini, J. Garcia-Bellido, Z. Haiman, K. Jani, O. Jennrich, P.H. Johansson, F.M. Khan, V. Korol, A. Lamberts, A. Lupi, A. Mangiagli, L. Mayer, G. Nardini, F. Pacucci, A. Petiteau, A. Raccanelli, S. Rajendran, J. Regan, L. Shao, A. Spallicci, N. Tamanini, M. Volonteri, N. Warburton, K. Wong, M. Zumalacarregui, Experimental Astronomy 51 (2021) 1333–1383. date_created: 2024-09-05T09:42:29Z date_published: 2021-09-04T00:00:00Z date_updated: 2024-09-11T14:53:17Z day: '04' doi: 10.1007/s10686-021-09709-9 extern: '1' intvolume: ' 51' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1007/s10686-021-09709-9 month: '09' oa: 1 oa_version: Published Version page: 1333-1383 publication: Experimental Astronomy publication_identifier: issn: - 0922-6435 - 1572-9508 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' scopus_import: '1' status: public title: Unveiling the gravitational universe at μ-Hz frequencies type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 51 year: '2021' ... --- _id: '17574' abstract: - lang: eng text: As weak lensing surveys are becoming deeper and cover larger areas, information will be available on small angular scales down to the arcmin level. To extract this extra information, accurate modelling of baryonic effects is necessary. In this work, we adopt a baryonic correction model, which includes gas both bound inside and ejected from dark matter (DM) haloes, a central galaxy, and changes in the DM profile induced by baryons. We use this model to incorporate baryons into a large suite of DM-only N-body simulations, covering a grid of 75 cosmologies in the Ωm–σ8 parameter space. We investigate how baryons affect Gaussian and non-Gaussian weak lensing statistics and the cosmological parameter inferences from these statistics. Our results show that marginalizing over baryonic parameters degrades the constraints in Ωm–σ8 space by a factor of 2–5 compared to those with baryonic parameters fixed. We also find that combining the lensing power spectrum and peak counts can break the degeneracy between cosmological and baryonic parameters and mitigate the impact of the uncertainty in baryonic physics. 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 citation: ama: Lu T, Haiman Z. The impact of baryons on cosmological inference from weak lensing statistics. Monthly Notices of the Royal Astronomical Society. 2021;506(3):3406-3417. doi:10.1093/mnras/stab1978 apa: Lu, T., & Haiman, Z. (2021). The impact of baryons on cosmological inference from weak lensing statistics. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab1978 chicago: Lu, Tianhuan, and Zoltán Haiman. “The Impact of Baryons on Cosmological Inference from Weak Lensing Statistics.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab1978. ieee: T. Lu and Z. Haiman, “The impact of baryons on cosmological inference from weak lensing statistics,” Monthly Notices of the Royal Astronomical Society, vol. 506, no. 3. Oxford University Press, pp. 3406–3417, 2021. ista: Lu T, Haiman Z. 2021. The impact of baryons on cosmological inference from weak lensing statistics. Monthly Notices of the Royal Astronomical Society. 506(3), 3406–3417. mla: Lu, Tianhuan, and Zoltán Haiman. “The Impact of Baryons on Cosmological Inference from Weak Lensing Statistics.” Monthly Notices of the Royal Astronomical Society, vol. 506, no. 3, Oxford University Press, 2021, pp. 3406–17, doi:10.1093/mnras/stab1978. short: T. Lu, Z. Haiman, Monthly Notices of the Royal Astronomical Society 506 (2021) 3406–3417. date_created: 2024-09-05T12:17:24Z date_published: 2021-07-10T00:00:00Z date_updated: 2024-09-19T07:43:16Z day: '10' doi: 10.1093/mnras/stab1978 extern: '1' intvolume: ' 506' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stab1978 month: '07' oa: 1 oa_version: Published Version page: 3406-3417 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 impact of baryons on cosmological inference from weak lensing statistics type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 506 year: '2021' ... --- _id: '17577' abstract: - lang: eng text: 'The Legacy Survey of Space and Time (LSST) by the Vera C. Rubin Observatory is expected to discover tens of millions of quasars. A significant fraction of these could be powered by coalescing massive black hole (MBH) binaries, since many quasars are believed to be triggered by mergers. We show that under plausible assumptions about the luminosity functions, lifetimes, and binary fractions of quasars, we expect the full LSST quasar catalogue to contain between 20 and 100 million compact MBH binaries with masses M = 105–9M⊙, redshifts z = 0–6, and orbital periods P = 1–70 d. Their light-curves are expected to be distinctly periodic, which can be confidently distinguished from stochastic red-noise variability, because LSST will cover dozens, or even hundreds of cycles. A very small subset of 10–150 ultracompact (P ≲ 1 d) binary quasars among these will, over ∼5–15 yr, evolve into the mHz gravitational-wave frequency band and can be detected by LISA. They can therefore be regarded as ‘LISA verification binaries’, analogous to short-period Galactic compact-object binaries. The practical question is how to find these handful of ‘needles in the haystack’ among the large number of quasars: this will likely require a tailored co-adding analysis optimized for this purpose.' article_processing_charge: No article_type: original author: - first_name: Chengcheng full_name: Xin, Chengcheng last_name: Xin - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Xin C, Haiman Z. Ultra-short-period massive black hole binary candidates in LSST as LISA ‘verification binaries.’ Monthly Notices of the Royal Astronomical Society. 2021;506(2):2408-2417. doi:10.1093/mnras/stab1856 apa: Xin, C., & Haiman, Z. (2021). Ultra-short-period massive black hole binary candidates in LSST as LISA ‘verification binaries.’ Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab1856 chicago: Xin, Chengcheng, and Zoltán Haiman. “Ultra-Short-Period Massive Black Hole Binary Candidates in LSST as LISA ‘Verification Binaries.’” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab1856. ieee: C. Xin and Z. Haiman, “Ultra-short-period massive black hole binary candidates in LSST as LISA ‘verification binaries,’” Monthly Notices of the Royal Astronomical Society, vol. 506, no. 2. Oxford University Press, pp. 2408–2417, 2021. ista: Xin C, Haiman Z. 2021. Ultra-short-period massive black hole binary candidates in LSST as LISA ‘verification binaries’. Monthly Notices of the Royal Astronomical Society. 506(2), 2408–2417. mla: Xin, Chengcheng, and Zoltán Haiman. “Ultra-Short-Period Massive Black Hole Binary Candidates in LSST as LISA ‘Verification Binaries.’” Monthly Notices of the Royal Astronomical Society, vol. 506, no. 2, Oxford University Press, 2021, pp. 2408–17, doi:10.1093/mnras/stab1856. short: C. Xin, Z. Haiman, Monthly Notices of the Royal Astronomical Society 506 (2021) 2408–2417. date_created: 2024-09-05T12:19:58Z date_published: 2021-07-05T00:00:00Z date_updated: 2024-09-19T08:07:41Z day: '05' doi: 10.1093/mnras/stab1856 extern: '1' intvolume: ' 506' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stab1856 month: '07' oa: 1 oa_version: Published Version page: 2408-2417 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: Ultra-short-period massive black hole binary candidates in LSST as LISA ‘verification binaries’ type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 506 year: '2021' ... --- _id: '17578' abstract: - lang: eng text: "If primordial black holes (PBHs) seeded the supermassive black holes (SMBHs) at the centers of high-redshift quasars, then the gas surrounding these black holes may reveal nucleosynthetic clues to their primordial origins. We present predictions of altered primordial abundances around PBHs massive enough to seed SMBHs at \U0001D467≈6–7.5. We find that if PBHs with initial masses of ∼105  M⊙ are responsible for such SMBHs, they may produce primordial deuterium and Helium fractions enhanced by ≥10%, and lithium abundance depleted by ≥10%, at distances of up to ≈ a comoving kiloparsec away from the black hole after decoupling. We estimate that ∼108  M⊙ of gas is enhanced (or depleted) by at least one percent. Evidence of these modified primordial deuterium, helium, and lithium abundances could still be present if this circum-PBH gas remains unaccreted by the SMBH and in or near the host galaxies of high-redshift quasars. Measuring the abundance anomalies will be challenging, but could offer a novel way to reveal the primordial origin of such SMBH seeds." article_number: '103022' article_processing_charge: No article_type: original author: - first_name: Phoebe Upton full_name: Sanderbeck, Phoebe Upton last_name: Sanderbeck - first_name: Simeon full_name: Bird, Simeon last_name: Bird - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: Sanderbeck PU, Bird S, Haiman Z. Nucleosynthetic signatures of primordial origin around supermassive black holes. Physical Review D. 2021;104(10). doi:10.1103/physrevd.104.103022 apa: Sanderbeck, P. U., Bird, S., & Haiman, Z. (2021). Nucleosynthetic signatures of primordial origin around supermassive black holes. Physical Review D. American Physical Society. https://doi.org/10.1103/physrevd.104.103022 chicago: Sanderbeck, Phoebe Upton, Simeon Bird, and Zoltán Haiman. “Nucleosynthetic Signatures of Primordial Origin around Supermassive Black Holes.” Physical Review D. American Physical Society, 2021. https://doi.org/10.1103/physrevd.104.103022. ieee: P. U. Sanderbeck, S. Bird, and Z. Haiman, “Nucleosynthetic signatures of primordial origin around supermassive black holes,” Physical Review D, vol. 104, no. 10. American Physical Society, 2021. ista: Sanderbeck PU, Bird S, Haiman Z. 2021. Nucleosynthetic signatures of primordial origin around supermassive black holes. Physical Review D. 104(10), 103022. mla: Sanderbeck, Phoebe Upton, et al. “Nucleosynthetic Signatures of Primordial Origin around Supermassive Black Holes.” Physical Review D, vol. 104, no. 10, 103022, American Physical Society, 2021, doi:10.1103/physrevd.104.103022. short: P.U. Sanderbeck, S. Bird, Z. Haiman, Physical Review D 104 (2021). date_created: 2024-09-05T12:20:50Z date_published: 2021-11-17T00:00:00Z date_updated: 2024-09-19T08:12:35Z day: '17' doi: 10.1103/physrevd.104.103022 extern: '1' intvolume: ' 104' issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1103/physrevd.104.103022 month: '11' 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: Nucleosynthetic signatures of primordial origin around supermassive black holes type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 104 year: '2021' ... --- _id: '17583' abstract: - lang: eng text: The astrophysical origin of gravitational wave transients is a timely open question in the wake of discoveries by the Laser Interferometer Gravitational-Wave Observatory (LIGO)/Virgo. In active galactic nuclei (AGNs), binaries form and evolve efficiently by interaction with a dense population of stars and the gaseous AGN disk. Previous studies have shown that stellar-mass black hole (BH) mergers in such environments can explain the merger rate and the number of suspected hierarchical mergers observed by LIGO/Virgo. The binary eccentricity distribution can provide further information to distinguish between astrophysical models. Here we derive the eccentricity distribution of BH mergers in AGN disks. We find that eccentricity is mainly due to binary–single (BS) interactions, which lead to most BH mergers in AGN disks having a significant eccentricity at 0.01 Hz, detectable by the Laser Interferometer Space Antenna. If BS interactions occur in isotropic-3D directions, then 8%–30% of the mergers in AGN disks will have eccentricities at 10 Hz above e10 Hz ≳ 0.03, detectable by LIGO/Virgo/Kamioka Gravitational Wave Detector, while 5%–17% of mergers have e10 Hz ≥ 0.3. On the other hand, if BS interactions are confined to the AGN–disk plane due to torques from the disk, with 1–20 intermediate binary states during each interaction, or if BHs can migrate to ≲ 10−3 pc from the central supermassive BH, then 10%–70% of the mergers will be highly eccentric (e10 Hz ≥ 0.3), consistent with the possible high eccentricity in GW190521. article_number: L20 article_processing_charge: No article_type: original author: - first_name: Hiromichi full_name: Tagawa, Hiromichi last_name: Tagawa - first_name: Bence full_name: Kocsis, Bence last_name: Kocsis - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Imre full_name: Bartos, Imre last_name: Bartos - first_name: Kazuyuki full_name: Omukai, Kazuyuki last_name: Omukai - first_name: Johan full_name: Samsing, Johan last_name: Samsing citation: ama: Tagawa H, Kocsis B, Haiman Z, Bartos I, Omukai K, Samsing J. Eccentric black hole mergers in active galactic nuclei. The Astrophysical Journal Letters. 2021;907(1). doi:10.3847/2041-8213/abd4d3 apa: Tagawa, H., Kocsis, B., Haiman, Z., Bartos, I., Omukai, K., & Samsing, J. (2021). Eccentric black hole mergers in active galactic nuclei. The Astrophysical Journal Letters. American Astronomical Society. https://doi.org/10.3847/2041-8213/abd4d3 chicago: Tagawa, Hiromichi, Bence Kocsis, Zoltán Haiman, Imre Bartos, Kazuyuki Omukai, and Johan Samsing. “Eccentric Black Hole Mergers in Active Galactic Nuclei.” The Astrophysical Journal Letters. American Astronomical Society, 2021. https://doi.org/10.3847/2041-8213/abd4d3. ieee: H. Tagawa, B. Kocsis, Z. Haiman, I. Bartos, K. Omukai, and J. Samsing, “Eccentric black hole mergers in active galactic nuclei,” The Astrophysical Journal Letters, vol. 907, no. 1. American Astronomical Society, 2021. ista: Tagawa H, Kocsis B, Haiman Z, Bartos I, Omukai K, Samsing J. 2021. Eccentric black hole mergers in active galactic nuclei. The Astrophysical Journal Letters. 907(1), L20. mla: Tagawa, Hiromichi, et al. “Eccentric Black Hole Mergers in Active Galactic Nuclei.” The Astrophysical Journal Letters, vol. 907, no. 1, L20, American Astronomical Society, 2021, doi:10.3847/2041-8213/abd4d3. short: H. Tagawa, B. Kocsis, Z. Haiman, I. Bartos, K. Omukai, J. Samsing, The Astrophysical Journal Letters 907 (2021). date_created: 2024-09-05T12:27:07Z date_published: 2021-01-21T00:00:00Z date_updated: 2024-09-19T11:41:11Z day: '21' doi: 10.3847/2041-8213/abd4d3 extern: '1' intvolume: ' 907' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3847/2041-8213/abd4d3 month: '01' oa: 1 oa_version: Published Version publication: The Astrophysical Journal Letters publication_identifier: issn: - 2041-8205 - 2041-8213 publication_status: published publisher: American Astronomical Society quality_controlled: '1' scopus_import: '1' status: public title: Eccentric black hole mergers in active galactic nuclei type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 907 year: '2021' ... --- _id: '17585' abstract: - lang: eng text: Recent gravitational wave (GW) observations by LIGO/Virgo show evidence for hierarchical mergers, where the merging BHs are the remnants of previous BH merger events. These events may carry important clues about the astrophysical host environments of the GW sources. In this paper, we present the distributions of the effective spin parameter (χeff), the precession spin parameter (χp), and the chirp mass (mchirp) expected in hierarchical mergers. Under a wide range of assumptions, hierarchical mergers produce (i) a monotonic increase of the average of the typical total spin for merging binaries, which we characterize with χ¯typ≡(χ2eff+χ2p)1/2¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯, up to roughly the maximum mchirp among first-generation (1g) BHs, and (ii) a plateau at χ¯typ∼0.6 at higher mchirp. We suggest that the maximum mass and typical spin magnitudes for 1g BHs can be estimated from χ¯typ as a function of mchirp. The GW data observed in LIGO/Virgo O1--O3a prefers an increase in χ¯typ at low mchirp, which is consistent with the growth of the BH spin magnitude by hierarchical mergers, at ∼2σ confidence. A Bayesian analysis suggests that 1g BHs have the maximum mass of ∼15--30M⊙ if the majority of mergers are of high-generation BHs (not among 1g-1g BHs), which is consistent with mergers in active galactic nucleus disks and/or nuclear star clusters, while if mergers mainly originate from globular clusters, 1g BHs are favored to have non-zero spin magnitudes of ∼0.3. We also forecast that signatures for hierarchical mergers in the χ¯typ distribution can be confidently recovered once the number of GW events increases to ≳O(100). article_processing_charge: No article_type: original author: - first_name: Hiromichi full_name: Tagawa, Hiromichi last_name: Tagawa - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Imre full_name: Bartos, Imre last_name: Bartos - first_name: Bence full_name: Kocsis, Bence last_name: Kocsis - first_name: Kazuyuki full_name: Omukai, Kazuyuki last_name: Omukai citation: ama: Tagawa H, Haiman Z, Bartos I, Kocsis B, Omukai K. Signatures of hierarchical mergers in black hole spin and mass distribution. Monthly Notices of the Royal Astronomical Society. 2021;507(3):3362-3380. doi:10.1093/mnras/stab2315 apa: Tagawa, H., Haiman, Z., Bartos, I., Kocsis, B., & Omukai, K. (2021). Signatures of hierarchical mergers in black hole spin and mass distribution. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab2315 chicago: Tagawa, Hiromichi, Zoltán Haiman, Imre Bartos, Bence Kocsis, and Kazuyuki Omukai. “Signatures of Hierarchical Mergers in Black Hole Spin and Mass Distribution.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab2315. ieee: H. Tagawa, Z. Haiman, I. Bartos, B. Kocsis, and K. Omukai, “Signatures of hierarchical mergers in black hole spin and mass distribution,” Monthly Notices of the Royal Astronomical Society, vol. 507, no. 3. Oxford University Press, pp. 3362–3380, 2021. ista: Tagawa H, Haiman Z, Bartos I, Kocsis B, Omukai K. 2021. Signatures of hierarchical mergers in black hole spin and mass distribution. Monthly Notices of the Royal Astronomical Society. 507(3), 3362–3380. mla: Tagawa, Hiromichi, et al. “Signatures of Hierarchical Mergers in Black Hole Spin and Mass Distribution.” Monthly Notices of the Royal Astronomical Society, vol. 507, no. 3, Oxford University Press, 2021, pp. 3362–80, doi:10.1093/mnras/stab2315. short: H. Tagawa, Z. Haiman, I. Bartos, B. Kocsis, K. Omukai, Monthly Notices of the Royal Astronomical Society 507 (2021) 3362–3380. date_created: 2024-09-05T12:30:08Z date_published: 2021-08-13T00:00:00Z date_updated: 2024-09-19T11:50:46Z day: '13' doi: 10.1093/mnras/stab2315 extern: '1' intvolume: ' 507' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stab2315 month: '08' oa: 1 oa_version: Published Version page: 3362-3380 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: Signatures of hierarchical mergers in black hole spin and mass distribution type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 507 year: '2021' ... --- _id: '17586' abstract: - lang: eng text: Variable active galactic nuclei showing periodic light curves have been proposed as massive black hole binary (MBHB) candidates. In such scenarios, the periodicity can be due to relativistic Doppler-boosting of the emitted light. This hypothesis can be tested through the timing of scattered polarized light. Following the results of polarization studies in type I nuclei and of dynamical studies of MBHBs with circumbinary discs, we assume a coplanar equatorial scattering ring, whose elements contribute differently to the total polarized flux, due to different scattering angles, levels of Doppler boost, and line-of-sight time delays. We find that in the presence of an MBHB, both the degree of polarization and the polarization position angle have periodic modulations. The polarization angle oscillates around the semiminor axis of the projected MBHB orbital ellipse, with a frequency equal either to the binary’s orbital frequency (for large scattering screen radii), or twice this value (for smaller scattering structures). These distinctive features can be used to probe the nature of periodic MBHB candidates and to compile catalogues of the most promising sub-pc MBHBs. The identification of such polarization features in gravitational-wave (GW) detected MBHBs would enormously increase the amount of physical information about the sources, allowing the measurement of the individual masses of the binary components, and the orientation of the line of nodes on the sky, even for monochromatic GW signals. article_processing_charge: No article_type: original author: - first_name: Massimo full_name: Dotti, Massimo last_name: Dotti - first_name: Matteo full_name: Bonetti, Matteo last_name: Bonetti - 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: Luis C full_name: Ho, Luis C last_name: Ho citation: ama: Dotti M, Bonetti M, D’Orazio DJ, Haiman Z, Ho LC. Binary black hole signatures in polarized light curves. Monthly Notices of the Royal Astronomical Society. 2021;509(1):212-223. doi:10.1093/mnras/stab2893 apa: Dotti, M., Bonetti, M., D’Orazio, D. J., Haiman, Z., & Ho, L. C. (2021). Binary black hole signatures in polarized light curves. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab2893 chicago: Dotti, Massimo, Matteo Bonetti, Daniel J D’Orazio, Zoltán Haiman, and Luis C Ho. “Binary Black Hole Signatures in Polarized Light Curves.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab2893. ieee: M. Dotti, M. Bonetti, D. J. D’Orazio, Z. Haiman, and L. C. Ho, “Binary black hole signatures in polarized light curves,” Monthly Notices of the Royal Astronomical Society, vol. 509, no. 1. Oxford University Press, pp. 212–223, 2021. ista: Dotti M, Bonetti M, D’Orazio DJ, Haiman Z, Ho LC. 2021. Binary black hole signatures in polarized light curves. Monthly Notices of the Royal Astronomical Society. 509(1), 212–223. mla: Dotti, Massimo, et al. “Binary Black Hole Signatures in Polarized Light Curves.” Monthly Notices of the Royal Astronomical Society, vol. 509, no. 1, Oxford University Press, 2021, pp. 212–23, doi:10.1093/mnras/stab2893. short: M. Dotti, M. Bonetti, D.J. D’Orazio, Z. Haiman, L.C. Ho, Monthly Notices of the Royal Astronomical Society 509 (2021) 212–223. date_created: 2024-09-05T12:32:01Z date_published: 2021-10-07T00:00:00Z date_updated: 2024-09-19T11:55:01Z day: '07' doi: 10.1093/mnras/stab2893 extern: '1' intvolume: ' 509' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1093/mnras/stab2893 month: '10' oa: 1 oa_version: Published Version page: 212-223 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: Binary black hole signatures in polarized light curves type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 509 year: '2021' ... --- _id: '17589' abstract: - lang: eng text: The origin of the black hole mergers detected by LIGO and Virgo remains an open question. While the unusual mass and spin of a few events constrain their possible astrophysical formation mechanisms, it is difficult to classify the bulk of the observed mergers. Here we consider the distribution of masses and spins in LIGO/Virgo's first and second observing catalogs, and find that for a significant fraction (25%) of these detected events, an AGN-disk origin model is preferred over a parametric mass-spin model fit to the full GWTC-2 merger sample (Bayes factor B>10). We use this to estimate the black hole merger rate in AGNs to be about 2.8±1.8\, Gpc−3yr−1, comparable to theoretical expectations. We find that AGNs can explain the rate and mass distribution of the observed events with primary black hole mass in the pair-instability mass gap (M≳50\, M⊙). article_number: L42 article_processing_charge: No article_type: original author: - first_name: V. full_name: Gayathri, V. last_name: Gayathri - first_name: Y. full_name: Yang, Y. last_name: Yang - first_name: H. full_name: Tagawa, H. last_name: Tagawa - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: I. full_name: Bartos, I. last_name: Bartos citation: ama: Gayathri V, Yang Y, Tagawa H, Haiman Z, Bartos I. Black hole mergers of AGN origin in LIGO–Virgo’s O1–O3a observing periods. The Astrophysical Journal Letters. 2021;920(2). doi:10.3847/2041-8213/ac2cc1 apa: Gayathri, V., Yang, Y., Tagawa, H., Haiman, Z., & Bartos, I. (2021). Black hole mergers of AGN origin in LIGO–Virgo’s O1–O3a observing periods. The Astrophysical Journal Letters. American Astronomical Society. https://doi.org/10.3847/2041-8213/ac2cc1 chicago: Gayathri, V., Y. Yang, H. Tagawa, Zoltán Haiman, and I. Bartos. “Black Hole Mergers of AGN Origin in LIGO–Virgo’s O1–O3a Observing Periods.” The Astrophysical Journal Letters. American Astronomical Society, 2021. https://doi.org/10.3847/2041-8213/ac2cc1. ieee: V. Gayathri, Y. Yang, H. Tagawa, Z. Haiman, and I. Bartos, “Black hole mergers of AGN origin in LIGO–Virgo’s O1–O3a observing periods,” The Astrophysical Journal Letters, vol. 920, no. 2. American Astronomical Society, 2021. ista: Gayathri V, Yang Y, Tagawa H, Haiman Z, Bartos I. 2021. Black hole mergers of AGN origin in LIGO–Virgo’s O1–O3a observing periods. The Astrophysical Journal Letters. 920(2), L42. mla: Gayathri, V., et al. “Black Hole Mergers of AGN Origin in LIGO–Virgo’s O1–O3a Observing Periods.” The Astrophysical Journal Letters, vol. 920, no. 2, L42, American Astronomical Society, 2021, doi:10.3847/2041-8213/ac2cc1. short: V. Gayathri, Y. Yang, H. Tagawa, Z. Haiman, I. Bartos, The Astrophysical Journal Letters 920 (2021). date_created: 2024-09-05T12:34:46Z date_published: 2021-10-21T00:00:00Z date_updated: 2024-09-19T12:17:28Z day: '21' doi: 10.3847/2041-8213/ac2cc1 extern: '1' intvolume: ' 920' issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3847/2041-8213/ac2cc1 month: '10' oa: 1 oa_version: Published Version publication: The Astrophysical Journal Letters publication_identifier: issn: - 2041-8205 - 2041-8213 publication_status: published publisher: American Astronomical Society quality_controlled: '1' scopus_import: '1' status: public title: Black hole mergers of AGN origin in LIGO–Virgo’s O1–O3a observing periods type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 920 year: '2021' ... --- OA_place: repository OA_type: green _id: '17592' abstract: - lang: eng text: Using high-resolution hydrodynamics simulations, we show that equal-mass binaries accreting from a circumbinary disk evolve toward an orbital eccentricity of e ≃ 0.45, unless they are initialized on a nearly circular orbit with e ≲ 0.08, in which case they further circularize. The implied bi-modal eccentricity distribution resembles that seen in post-AGB stellar binaries. Large accretion spikes around periapse impart a tell-tale, quasiperiodic, bursty signature on the light curves of eccentric binaries. We predict that intermediate-mass and massive black hole binaries at z ≲ 10 entering the LISA band will have measurable eccentricities in the range of e ≃ 10−3 − 10−2, if they have experienced a gas-driven phase. On the other hand, GW190521 would have entered the LIGO/Virgo band with undetectable eccentricity ∼10−6 if it had been driven into the gravitational-wave regime by a gas disk. article_number: L13 article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Jonathan full_name: Zrake, Jonathan last_name: Zrake - first_name: Christopher full_name: Tiede, Christopher last_name: Tiede - 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 orcid: 0000-0003-3633-5403 citation: ama: Zrake J, Tiede C, MacFadyen A, Haiman Z. Equilibrium eccentricity of accreting binaries. The Astrophysical Journal Letters. 2021;909(1). doi:10.3847/2041-8213/abdd1c apa: Zrake, J., Tiede, C., MacFadyen, A., & Haiman, Z. (2021). Equilibrium eccentricity of accreting binaries. The Astrophysical Journal Letters. American Astronomical Society. https://doi.org/10.3847/2041-8213/abdd1c chicago: Zrake, Jonathan, Christopher Tiede, Andrew MacFadyen, and Zoltán Haiman. “Equilibrium Eccentricity of Accreting Binaries.” The Astrophysical Journal Letters. American Astronomical Society, 2021. https://doi.org/10.3847/2041-8213/abdd1c. ieee: J. Zrake, C. Tiede, A. MacFadyen, and Z. Haiman, “Equilibrium eccentricity of accreting binaries,” The Astrophysical Journal Letters, vol. 909, no. 1. American Astronomical Society, 2021. ista: Zrake J, Tiede C, MacFadyen A, Haiman Z. 2021. Equilibrium eccentricity of accreting binaries. The Astrophysical Journal Letters. 909(1), L13. mla: Zrake, Jonathan, et al. “Equilibrium Eccentricity of Accreting Binaries.” The Astrophysical Journal Letters, vol. 909, no. 1, L13, American Astronomical Society, 2021, doi:10.3847/2041-8213/abdd1c. short: J. Zrake, C. Tiede, A. MacFadyen, Z. Haiman, The Astrophysical Journal Letters 909 (2021). date_created: 2024-09-05T12:39:13Z date_published: 2021-03-03T00:00:00Z date_updated: 2025-01-03T11:32:01Z day: '03' doi: 10.3847/2041-8213/abdd1c extern: '1' external_id: arxiv: - '2010.09707' intvolume: ' 909' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/2010.09707 month: '03' oa: 1 oa_version: Preprint publication: The Astrophysical Journal Letters publication_identifier: eissn: - 2041-8213 issn: - 2041-8205 publication_status: published publisher: American Astronomical Society quality_controlled: '1' scopus_import: '1' status: public title: Equilibrium eccentricity of accreting binaries type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 909 year: '2021' ... --- _id: '17593' abstract: - lang: eng text: The science objectives of the LISA mission have been defined under the implicit assumption of a 4-years continuous data stream. Based on the performance of LISA Pathfinder, it is now expected that LISA will have a duty cycle of ≈0.75 , which would reduce the effective span of usable data to 3 years. This paper reports the results of a study by the LISA Science Group, which was charged with assessing the additional science return of increasing the mission lifetime. We explore various observational scenarios to assess the impact of mission duration on the main science objectives of the mission. We find that the science investigations most affected by mission duration concern the search for seed black holes at cosmic dawn, as well as the study of stellar-origin black holes and of their formation channels via multi-band and multi-messenger observations. We conclude that an extension to 6 years of mission operations is recommended. article_number: '3' article_processing_charge: No article_type: original author: - first_name: Pau full_name: Amaro Seoane, Pau last_name: Amaro Seoane - first_name: Manuel full_name: Arca Sedda, Manuel last_name: Arca Sedda - first_name: Stanislav full_name: Babak, Stanislav last_name: Babak - first_name: Christopher P. L. full_name: Berry, Christopher P. L. last_name: Berry - first_name: Emanuele full_name: Berti, Emanuele last_name: Berti - first_name: Gianfranco full_name: Bertone, Gianfranco last_name: Bertone - first_name: Diego full_name: Blas, Diego last_name: Blas - first_name: Tamara full_name: Bogdanović, Tamara last_name: Bogdanović - first_name: Matteo full_name: Bonetti, Matteo last_name: Bonetti - first_name: Katelyn full_name: Breivik, Katelyn last_name: Breivik - first_name: Richard full_name: Brito, Richard last_name: Brito - first_name: Robert full_name: Caldwell, Robert last_name: Caldwell - first_name: Pedro R. full_name: Capelo, Pedro R. last_name: Capelo - first_name: Chiara full_name: Caprini, Chiara last_name: Caprini - first_name: Vitor full_name: Cardoso, Vitor last_name: Cardoso - first_name: Zack full_name: Carson, Zack last_name: Carson - first_name: Hsin-Yu full_name: Chen, Hsin-Yu last_name: Chen - first_name: Alvin J. K. full_name: Chua, Alvin J. K. last_name: Chua - first_name: Irina full_name: Dvorkin, Irina last_name: Dvorkin - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Lavinia full_name: Heisenberg, Lavinia last_name: Heisenberg - first_name: Maximiliano full_name: Isi, Maximiliano last_name: Isi - first_name: Nikolaos full_name: Karnesis, Nikolaos last_name: Karnesis - first_name: Bradley J. full_name: Kavanagh, Bradley J. last_name: Kavanagh - first_name: Tyson B. full_name: Littenberg, Tyson B. last_name: Littenberg - first_name: Alberto full_name: Mangiagli, Alberto last_name: Mangiagli - first_name: Paolo full_name: Marcoccia, Paolo last_name: Marcoccia - first_name: Andrea full_name: Maselli, Andrea last_name: Maselli - first_name: Germano full_name: Nardini, Germano last_name: Nardini - first_name: Paolo full_name: Pani, Paolo last_name: Pani - first_name: Marco full_name: Peloso, Marco last_name: Peloso - first_name: Mauro full_name: Pieroni, Mauro last_name: Pieroni - first_name: Angelo full_name: Ricciardone, Angelo last_name: Ricciardone - first_name: Alberto full_name: Sesana, Alberto last_name: Sesana - first_name: Nicola full_name: Tamanini, Nicola last_name: Tamanini - first_name: Alexandre full_name: Toubiana, Alexandre last_name: Toubiana - first_name: Rosa full_name: Valiante, Rosa last_name: Valiante - first_name: Stamatis full_name: Vretinaris, Stamatis last_name: Vretinaris - first_name: David J. full_name: Weir, David J. last_name: Weir - first_name: Kent full_name: Yagi, Kent last_name: Yagi - first_name: Aaron full_name: Zimmerman, Aaron last_name: Zimmerman citation: ama: Amaro Seoane P, Arca Sedda M, Babak S, et al. The effect of mission duration on LISA science objectives. General Relativity and Gravitation. 2021;54(1). doi:10.1007/s10714-021-02889-x apa: Amaro Seoane, P., Arca Sedda, M., Babak, S., Berry, C. P. L., Berti, E., Bertone, G., … Zimmerman, A. (2021). The effect of mission duration on LISA science objectives. General Relativity and Gravitation. Springer Science and Business Media LLC. https://doi.org/10.1007/s10714-021-02889-x chicago: Amaro Seoane, Pau, Manuel Arca Sedda, Stanislav Babak, Christopher P. L. Berry, Emanuele Berti, Gianfranco Bertone, Diego Blas, et al. “The Effect of Mission Duration on LISA Science Objectives.” General Relativity and Gravitation. Springer Science and Business Media LLC, 2021. https://doi.org/10.1007/s10714-021-02889-x. ieee: P. Amaro Seoane et al., “The effect of mission duration on LISA science objectives,” General Relativity and Gravitation, vol. 54, no. 1. Springer Science and Business Media LLC, 2021. ista: Amaro Seoane P, Arca Sedda M, Babak S, Berry CPL, Berti E, Bertone G, Blas D, Bogdanović T, Bonetti M, Breivik K, Brito R, Caldwell R, Capelo PR, Caprini C, Cardoso V, Carson Z, Chen H-Y, Chua AJK, Dvorkin I, Haiman Z, Heisenberg L, Isi M, Karnesis N, Kavanagh BJ, Littenberg TB, Mangiagli A, Marcoccia P, Maselli A, Nardini G, Pani P, Peloso M, Pieroni M, Ricciardone A, Sesana A, Tamanini N, Toubiana A, Valiante R, Vretinaris S, Weir DJ, Yagi K, Zimmerman A. 2021. The effect of mission duration on LISA science objectives. General Relativity and Gravitation. 54(1), 3. mla: Amaro Seoane, Pau, et al. “The Effect of Mission Duration on LISA Science Objectives.” General Relativity and Gravitation, vol. 54, no. 1, 3, Springer Science and Business Media LLC, 2021, doi:10.1007/s10714-021-02889-x. short: P. Amaro Seoane, M. Arca Sedda, S. Babak, C.P.L. Berry, E. Berti, G. Bertone, D. Blas, T. Bogdanović, M. Bonetti, K. Breivik, R. Brito, R. Caldwell, P.R. Capelo, C. Caprini, V. Cardoso, Z. Carson, H.-Y. Chen, A.J.K. Chua, I. Dvorkin, Z. Haiman, L. Heisenberg, M. Isi, N. Karnesis, B.J. Kavanagh, T.B. Littenberg, A. Mangiagli, P. Marcoccia, A. Maselli, G. Nardini, P. Pani, M. Peloso, M. Pieroni, A. Ricciardone, A. Sesana, N. Tamanini, A. Toubiana, R. Valiante, S. Vretinaris, D.J. Weir, K. Yagi, A. Zimmerman, General Relativity and Gravitation 54 (2021). date_created: 2024-09-05T12:40:14Z date_published: 2021-12-27T00:00:00Z date_updated: 2024-09-23T12:32:50Z day: '27' doi: 10.1007/s10714-021-02889-x extern: '1' intvolume: ' 54' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1007/s10714-021-02889-x month: '12' oa: 1 oa_version: Published Version publication: General Relativity and Gravitation publication_identifier: issn: - 0001-7701 - 1572-9532 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' scopus_import: '1' status: public title: The effect of mission duration on LISA science objectives type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 54 year: '2021' ... --- _id: '17598' abstract: - lang: eng text: The successive discoveries of binary merger events by Advanced LIGO-Virgo have been revealing the statistical properties of binary black hole (BBH) populations. A stochastic gravitational wave background (GWB) is a useful tool to probe the cosmological evolution of those compact mergers. In this paper, we study the upper bound on a GWB produced by BBH mergers, whose stellar progenitors dominate the reionization process at the cosmic dawn. Since early reionization by those progenitors yields a high optical depth of the universe inconsistent with the {\it Planck} measurements, the cumulative mass density is limited to ρ⋆≲107 M⊙ Mpc−3. Even with this upper bound, the amplitude of a GWB owing to the high-z BBH mergers is expected to be as high as Ωgw≃1.48+1.80−1.27×10−9 at f≃25 Hz, while their merger rate at the present-day is consistent or lower than the observed GW event rate. This level of GWB is detectable at the design sensitivity of Advanced LIGO-Virgo and would indicate a major contribution of the high-z BBH population to the local GW events. The spectral index is expected to be substantially flatter than the canonical value of ≃2/3 generically produced by lower-redshift and less massive BBHs. Moreover, if their mass function is more top-heavy than in the local universe, the GWB spectrum is even more skewed toward lower frequencies, which would allow us to extract information on the mass function of merging BBHs at high redshifts. article_number: '41' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Kohei full_name: Inayoshi, Kohei last_name: Inayoshi - first_name: Kazumi full_name: Kashiyama, Kazumi last_name: Kashiyama - first_name: Eli full_name: Visbal, Eli last_name: Visbal - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman citation: ama: 'Inayoshi K, Kashiyama K, Visbal E, Haiman Z. Gravitational wave backgrounds from coalescing black hole binaries at cosmic dawn: An upper bound. The Astrophysical Journal. 2021;919(1). doi:10.3847/1538-4357/ac106d' apa: 'Inayoshi, K., Kashiyama, K., Visbal, E., & Haiman, Z. (2021). Gravitational wave backgrounds from coalescing black hole binaries at cosmic dawn: An upper bound. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/ac106d' chicago: 'Inayoshi, Kohei, Kazumi Kashiyama, Eli Visbal, and Zoltán Haiman. “Gravitational Wave Backgrounds from Coalescing Black Hole Binaries at Cosmic Dawn: An Upper Bound.” The Astrophysical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac106d.' ieee: 'K. Inayoshi, K. Kashiyama, E. Visbal, and Z. Haiman, “Gravitational wave backgrounds from coalescing black hole binaries at cosmic dawn: An upper bound,” The Astrophysical Journal, vol. 919, no. 1. American Astronomical Society, 2021.' ista: 'Inayoshi K, Kashiyama K, Visbal E, Haiman Z. 2021. Gravitational wave backgrounds from coalescing black hole binaries at cosmic dawn: An upper bound. The Astrophysical Journal. 919(1), 41.' mla: 'Inayoshi, Kohei, et al. “Gravitational Wave Backgrounds from Coalescing Black Hole Binaries at Cosmic Dawn: An Upper Bound.” The Astrophysical Journal, vol. 919, no. 1, 41, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac106d.' short: K. Inayoshi, K. Kashiyama, E. Visbal, Z. Haiman, The Astrophysical Journal 919 (2021). date_created: 2024-09-05T12:46:25Z date_published: 2021-09-22T00:00:00Z date_updated: 2024-09-23T13:08:15Z day: '22' doi: 10.3847/1538-4357/ac106d extern: '1' external_id: arxiv: - '2103.12755' intvolume: ' 919' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.2103.12755' month: '09' oa: 1 oa_version: Preprint 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: 'Gravitational wave backgrounds from coalescing black hole binaries at cosmic dawn: An upper bound' type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 919 year: '2021' ... --- _id: '17610' abstract: - lang: eng text: 'The presence of massive black holes (BHs) with masses of order 109M⊙, powering bright quasars when the Universe was less than 1 Gyr old, poses strong constraints on their formation mechanism. Several scenarios have been proposed to date to explain massive BH formation, from the low-mass seed BH remnants of the first generation of stars to the massive seed BHs resulting from the rapid collapse of massive gas clouds. However, the plausibility of some of these scenarios to occur within the progenitors of high-z quasars has not yet been thoroughly explored. In this work, we investigate, by combining dark-matter only N-body simulations with a semi-analytic framework, whether the conditions for the formation of massive seed BHs from synchronised atomic-cooling halo pairs and/or dynamically-heated mini-haloes are fulfilled in the overdense regions where the progenitors of a typical high-redshift quasar host form and evolve. Our analysis shows that the peculiar conditions in such regions, i.e. strong halo clustering and high star formation rates, are crucial to produce a non-negligible number of massive seed BH host candidates: we find ≈1400 dynamically heated metal-free mini-haloes, including one of these which evolves to a synchronised pair and ends up in the massive quasar-host halo by z=6. This demonstrates that the progenitors of high-redshift quasar host haloes can harbour early massive seed BHs. Our results further suggest that multiple massive seed BHs may form in or near the quasar host''s progenitors, potentially merging at lower redshifts and yielding gravitational wave events.' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Alessandro full_name: Lupi, Alessandro last_name: Lupi - first_name: Zoltán full_name: Haiman, Zoltán id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36 last_name: Haiman - first_name: Marta full_name: Volonteri, Marta last_name: Volonteri citation: ama: Lupi A, Haiman Z, Volonteri M. Forming massive seed black holes in high-redshift quasar host progenitors. Monthly Notices of the Royal Astronomical Society. 2021;503(4):5046-5060. doi:10.1093/mnras/stab692 apa: Lupi, A., Haiman, Z., & Volonteri, M. (2021). Forming massive seed black holes in high-redshift quasar host progenitors. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stab692 chicago: Lupi, Alessandro, Zoltán Haiman, and Marta Volonteri. “Forming Massive Seed Black Holes in High-Redshift Quasar Host Progenitors.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2021. https://doi.org/10.1093/mnras/stab692. ieee: A. Lupi, Z. Haiman, and M. Volonteri, “Forming massive seed black holes in high-redshift quasar host progenitors,” Monthly Notices of the Royal Astronomical Society, vol. 503, no. 4. Oxford University Press, pp. 5046–5060, 2021. ista: Lupi A, Haiman Z, Volonteri M. 2021. Forming massive seed black holes in high-redshift quasar host progenitors. Monthly Notices of the Royal Astronomical Society. 503(4), 5046–5060. mla: Lupi, Alessandro, et al. “Forming Massive Seed Black Holes in High-Redshift Quasar Host Progenitors.” Monthly Notices of the Royal Astronomical Society, vol. 503, no. 4, Oxford University Press, 2021, pp. 5046–60, doi:10.1093/mnras/stab692. short: A. Lupi, Z. Haiman, M. Volonteri, Monthly Notices of the Royal Astronomical Society 503 (2021) 5046–5060. date_created: 2024-09-05T13:22:23Z date_published: 2021-03-24T00:00:00Z date_updated: 2024-09-23T14:49:49Z day: '24' doi: 10.1093/mnras/stab692 extern: '1' external_id: arxiv: - '2102.05051' intvolume: ' 503' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.2102.05051' month: '03' oa: 1 oa_version: Preprint page: 5046-5060 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: Forming massive seed black holes in high-redshift quasar host progenitors type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 503 year: '2021' ... --- OA_type: closed access _id: '17876' abstract: - lang: eng text: The scanning tunneling microscope-based break-junction (STM-BJ) technique is the most common method used to study the electronic properties of single-molecule junctions. It relies on repeatedly forming and rupturing a Au contact in an environment of the target molecules. The probability of junction formation is typically very high (∼70–95%), prompting questions relating to how the nanoscale structure of the Au electrode before the metal point contact ruptures alters junction formation. Here we analyze conductance traces measured with the STM-BJ setup by combining correlation analysis and multiple machine learning tools, including gradient-boosted trees and neural networks. We show that two key features describing the Au–Au contact prior to rupture determine the extent of contact relaxation (snapback) and the probability of junction formation. Importantly, our data strongly indicate that molecular junctions are formed prior to the rupture of the Au–Au contact, explaining the high probability of junction formation observed in room-temperature solution measurements. article_processing_charge: No article_type: original author: - first_name: Tianren full_name: Fu, Tianren last_name: Fu - first_name: Kathleen full_name: Frommer, Kathleen last_name: Frommer - 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: Fu T, Frommer K, Nuckolls C, Venkataraman L. Single-molecule junction formation in break-junction measurements. The Journal of Physical Chemistry Letters. 2021;12(44):10802-10807. doi:10.1021/acs.jpclett.1c03160 apa: Fu, T., Frommer, K., Nuckolls, C., & Venkataraman, L. (2021). Single-molecule junction formation in break-junction measurements. The Journal of Physical Chemistry Letters. American Chemical Society. https://doi.org/10.1021/acs.jpclett.1c03160 chicago: Fu, Tianren, Kathleen Frommer, Colin Nuckolls, and Latha Venkataraman. “Single-Molecule Junction Formation in Break-Junction Measurements.” The Journal of Physical Chemistry Letters. American Chemical Society, 2021. https://doi.org/10.1021/acs.jpclett.1c03160. ieee: T. Fu, K. Frommer, C. Nuckolls, and L. Venkataraman, “Single-molecule junction formation in break-junction measurements,” The Journal of Physical Chemistry Letters, vol. 12, no. 44. American Chemical Society, pp. 10802–10807, 2021. ista: Fu T, Frommer K, Nuckolls C, Venkataraman L. 2021. Single-molecule junction formation in break-junction measurements. The Journal of Physical Chemistry Letters. 12(44), 10802–10807. mla: Fu, Tianren, et al. “Single-Molecule Junction Formation in Break-Junction Measurements.” The Journal of Physical Chemistry Letters, vol. 12, no. 44, American Chemical Society, 2021, pp. 10802–07, doi:10.1021/acs.jpclett.1c03160. short: T. Fu, K. Frommer, C. Nuckolls, L. Venkataraman, The Journal of Physical Chemistry Letters 12 (2021) 10802–10807. date_created: 2024-09-06T13:10:30Z date_published: 2021-11-01T00:00:00Z date_updated: 2024-12-10T10:03:05Z day: '01' doi: 10.1021/acs.jpclett.1c03160 extern: '1' external_id: pmid: - '34723548' intvolume: ' 12' issue: '44' language: - iso: eng month: '11' oa_version: None page: 10802-10807 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: Single-molecule junction formation in break-junction measurements type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 12 year: '2021' ... --- OA_type: closed access _id: '17877' abstract: - lang: eng text: Chemical reactions that occur at nanostructured electrodes have garnered widespread interest because of their potential applications in fields including nanotechnology, green chemistry and fundamental physical organic chemistry. Much of our present understanding of these reactions comes from probes that interrogate ensembles of molecules undergoing various stages of the transformation concurrently. Exquisite control over single-molecule reactivity lets us construct new molecules and further our understanding of nanoscale chemical phenomena. We can study single molecules using instruments such as the scanning tunnelling microscope, which can additionally be part of a mechanically controlled break junction. These are unique tools that can offer a high level of detail. They probe the electronic conductance of individual molecules and catalyse chemical reactions by establishing environments with reactive metal sites on nanoscale electrodes. This Review describes how chemical reactions involving bond cleavage and formation can be triggered at nanoscale electrodes and studied one molecule at a time. article_processing_charge: No article_type: review author: - first_name: Ilana full_name: Stone, Ilana last_name: Stone - first_name: Rachel L. full_name: Starr, Rachel L. last_name: Starr - first_name: Yaping full_name: Zang, Yaping last_name: Zang - first_name: Colin full_name: Nuckolls, Colin last_name: Nuckolls - first_name: Michael L. full_name: Steigerwald, Michael L. last_name: Steigerwald - first_name: Tristan H. full_name: Lambert, Tristan H. last_name: Lambert - 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 I, Starr RL, Zang Y, et al. A single-molecule blueprint for synthesis. Nature Reviews Chemistry. 2021;5(10):695-710. doi:10.1038/s41570-021-00316-y apa: Stone, I., Starr, R. L., Zang, Y., Nuckolls, C., Steigerwald, M. L., Lambert, T. H., … Venkataraman, L. (2021). A single-molecule blueprint for synthesis. Nature Reviews Chemistry. Springer Nature. https://doi.org/10.1038/s41570-021-00316-y chicago: Stone, Ilana, Rachel L. Starr, Yaping Zang, Colin Nuckolls, Michael L. Steigerwald, Tristan H. Lambert, Xavier Roy, and Latha Venkataraman. “A Single-Molecule Blueprint for Synthesis.” Nature Reviews Chemistry. Springer Nature, 2021. https://doi.org/10.1038/s41570-021-00316-y. ieee: I. Stone et al., “A single-molecule blueprint for synthesis,” Nature Reviews Chemistry, vol. 5, no. 10. Springer Nature, pp. 695–710, 2021. ista: Stone I, Starr RL, Zang Y, Nuckolls C, Steigerwald ML, Lambert TH, Roy X, Venkataraman L. 2021. A single-molecule blueprint for synthesis. Nature Reviews Chemistry. 5(10), 695–710. mla: Stone, Ilana, et al. “A Single-Molecule Blueprint for Synthesis.” Nature Reviews Chemistry, vol. 5, no. 10, Springer Nature, 2021, pp. 695–710, doi:10.1038/s41570-021-00316-y. short: I. Stone, R.L. Starr, Y. Zang, C. Nuckolls, M.L. Steigerwald, T.H. Lambert, X. Roy, L. Venkataraman, Nature Reviews Chemistry 5 (2021) 695–710. date_created: 2024-09-06T13:11:31Z date_published: 2021-08-25T00:00:00Z date_updated: 2024-12-10T10:05:51Z day: '25' doi: 10.1038/s41570-021-00316-y extern: '1' external_id: pmid: - '37118183' intvolume: ' 5' issue: '10' language: - iso: eng month: '08' oa_version: None page: 695-710 pmid: 1 publication: Nature Reviews Chemistry publication_identifier: issn: - 2397-3358 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: A single-molecule blueprint for synthesis type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 5 year: '2021' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '17899' abstract: - lang: eng text: Designing highly insulating sub-nanometer molecules is difficult because tunneling conductance increases exponentially with decreasing molecular length. This challenge is further enhanced by the fact that most molecules cannot achieve full conductance suppression with destructive quantum interference. Here, we present results for a series of small saturated heterocyclic alkanes where we show that conductance is suppressed due to destructive interference. Using the STM-BJ technique and density functional theory calculations, we confirm that their single-molecule junction conductance is lower than analogous alkanes of similar length. We rationalize the suppression of conductance in the junctions through analysis of the computed ballistic current density. We find there are highly symmetric ring currents, which reverse direction at the antiresonance in the Landauer transmission near the Fermi energy. This pattern has not been seen in earlier studies of larger bicyclic systems exhibiting interference effects and constitutes clear-cut evidence of destructive σ-interference. The finding of heterocyclic alkanes with destructive quantum interference charts a pathway for chemical design of short molecular insulators using organic molecules. article_processing_charge: Yes article_type: original author: - first_name: Boyuan full_name: Zhang, Boyuan last_name: Zhang - first_name: Marc H. full_name: Garner, Marc H. last_name: Garner - first_name: Liang full_name: Li, Liang last_name: Li - first_name: Luis M. full_name: Campos, Luis M. last_name: Campos - first_name: Gemma C. full_name: Solomon, Gemma C. last_name: Solomon - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 citation: ama: 'Zhang B, Garner MH, Li L, Campos LM, Solomon GC, Venkataraman L. Destructive quantum interference in heterocyclic alkanes: The search for ultra-short molecular insulators. Chemical Science. 2021;12(30):10299-10305. doi:10.1039/d1sc02287c' apa: 'Zhang, B., Garner, M. H., Li, L., Campos, L. M., Solomon, G. C., & Venkataraman, L. (2021). Destructive quantum interference in heterocyclic alkanes: The search for ultra-short molecular insulators. Chemical Science. Royal Society of Chemistry. https://doi.org/10.1039/d1sc02287c' chicago: 'Zhang, Boyuan, Marc H. Garner, Liang Li, Luis M. Campos, Gemma C. Solomon, and Latha Venkataraman. “Destructive Quantum Interference in Heterocyclic Alkanes: The Search for Ultra-Short Molecular Insulators.” Chemical Science. Royal Society of Chemistry, 2021. https://doi.org/10.1039/d1sc02287c.' ieee: 'B. Zhang, M. H. Garner, L. Li, L. M. Campos, G. C. Solomon, and L. Venkataraman, “Destructive quantum interference in heterocyclic alkanes: The search for ultra-short molecular insulators,” Chemical Science, vol. 12, no. 30. Royal Society of Chemistry, pp. 10299–10305, 2021.' ista: 'Zhang B, Garner MH, Li L, Campos LM, Solomon GC, Venkataraman L. 2021. Destructive quantum interference in heterocyclic alkanes: The search for ultra-short molecular insulators. Chemical Science. 12(30), 10299–10305.' mla: 'Zhang, Boyuan, et al. “Destructive Quantum Interference in Heterocyclic Alkanes: The Search for Ultra-Short Molecular Insulators.” Chemical Science, vol. 12, no. 30, Royal Society of Chemistry, 2021, pp. 10299–305, doi:10.1039/d1sc02287c.' short: B. Zhang, M.H. Garner, L. Li, L.M. Campos, G.C. Solomon, L. Venkataraman, Chemical Science 12 (2021) 10299–10305. date_created: 2024-09-09T06:42:54Z date_published: 2021-06-30T00:00:00Z date_updated: 2024-12-10T10:11:16Z day: '30' doi: 10.1039/d1sc02287c extern: '1' external_id: pmid: - '34476051' intvolume: ' 12' issue: '30' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1039/D1SC02287C month: '06' oa: 1 oa_version: Published Version page: 10299-10305 pmid: 1 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: 'Destructive quantum interference in heterocyclic alkanes: The search for ultra-short molecular insulators' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 12 year: '2021' ... --- OA_type: closed access _id: '17900' abstract: - lang: eng text: To rival the performance of modern integrated circuits, single-molecule devices must be designed to exhibit extremely nonlinear current–voltage (I–V) characteristics1,2,3,4. A common approach is to design molecular backbones where destructive quantum interference (QI) between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) produces a nonlinear energy-dependent tunnelling probability near the electrode Fermi energy (EF)5,6,7,8. However, tuning such systems is not straightforward, as aligning the frontier orbitals to EF is hard to control9. Here, we instead create a molecular system where constructive QI between the HOMO and LUMO is suppressed and destructive QI between the HOMO and strongly coupled occupied orbitals of opposite phase is enhanced. We use a series of fluorene oligomers containing a central benzothiadiazole10 unit to demonstrate that this strategy can be used to create highly nonlinear single-molecule circuits. Notably, we are able to reproducibly modulate the conductance of a 6-nm molecule by a factor of more than 10^4. article_processing_charge: No author: - first_name: Julia E. full_name: Greenwald, Julia E. last_name: Greenwald - first_name: Joseph full_name: Cameron, Joseph last_name: Cameron - first_name: Neil J. full_name: Findlay, Neil J. last_name: Findlay - first_name: Tianren full_name: Fu, Tianren last_name: Fu - first_name: Suman full_name: Gunasekaran, Suman last_name: Gunasekaran - first_name: Peter J. full_name: Skabara, Peter J. last_name: Skabara - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 citation: ama: Greenwald JE, Cameron J, Findlay NJ, et al. Highly nonlinear transport across single-molecule junctions via destructive quantum interference. Nature Nanotechnology. 2021;16(3):313-317. doi:10.1038/s41565-020-00807-x apa: Greenwald, J. E., Cameron, J., Findlay, N. J., Fu, T., Gunasekaran, S., Skabara, P. J., & Venkataraman, L. (2021). Highly nonlinear transport across single-molecule junctions via destructive quantum interference. Nature Nanotechnology. Springer Nature. https://doi.org/10.1038/s41565-020-00807-x chicago: Greenwald, Julia E., Joseph Cameron, Neil J. Findlay, Tianren Fu, Suman Gunasekaran, Peter J. Skabara, and Latha Venkataraman. “Highly Nonlinear Transport across Single-Molecule Junctions via Destructive Quantum Interference.” Nature Nanotechnology. Springer Nature, 2021. https://doi.org/10.1038/s41565-020-00807-x. ieee: J. E. Greenwald et al., “Highly nonlinear transport across single-molecule junctions via destructive quantum interference,” Nature Nanotechnology, vol. 16, no. 3. Springer Nature, pp. 313–317, 2021. ista: Greenwald JE, Cameron J, Findlay NJ, Fu T, Gunasekaran S, Skabara PJ, Venkataraman L. 2021. Highly nonlinear transport across single-molecule junctions via destructive quantum interference. Nature Nanotechnology. 16(3), 313–317. mla: Greenwald, Julia E., et al. “Highly Nonlinear Transport across Single-Molecule Junctions via Destructive Quantum Interference.” Nature Nanotechnology, vol. 16, no. 3, Springer Nature, 2021, pp. 313–17, doi:10.1038/s41565-020-00807-x. short: J.E. Greenwald, J. Cameron, N.J. Findlay, T. Fu, S. Gunasekaran, P.J. Skabara, L. Venkataraman, Nature Nanotechnology 16 (2021) 313–317. date_created: 2024-09-09T06:43:51Z date_published: 2021-03-01T00:00:00Z date_updated: 2024-12-10T10:20:32Z day: '01' doi: 10.1038/s41565-020-00807-x extern: '1' external_id: pmid: - '33288949' intvolume: ' 16' issue: '3' language: - iso: eng month: '03' oa_version: None page: 313-317 pmid: 1 publication: Nature Nanotechnology publication_identifier: eissn: - 1748-3395 issn: - 1748-3387 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Highly nonlinear transport across single-molecule junctions via destructive quantum interference type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 16 year: '2021' ... --- OA_type: closed access _id: '17901' abstract: - lang: eng text: A 1,1,2,2-tetrakis(4-aminophenyl)ethene with three paths of π-conjugation, linear-cis, linear-trans and a cross-conjugation, has been prepared. The molecule is able to bind to gold electrodes forming molecular junctions for single-molecule conductance measurements. Only two regimes of conduction are found experimentally. The modelling of the conductance allows to assign them to through-bond transmission in the linear case, while the cross-conjugated channel is further assisted by through-space transmission, partially alleviating the destructive quantum interference. article_processing_charge: No article_type: original author: - first_name: Samara full_name: Medina Rivero, Samara last_name: Medina Rivero - first_name: Paloma full_name: García Arroyo, Paloma last_name: García Arroyo - first_name: Liang full_name: Li, Liang last_name: Li - first_name: Suman full_name: Gunasekaran, Suman last_name: Gunasekaran - first_name: Thijs full_name: Stuyver, Thijs last_name: Stuyver - first_name: María José full_name: Mancheño, María José last_name: Mancheño - first_name: Mercedes full_name: Alonso, Mercedes last_name: Alonso - first_name: Latha full_name: Venkataraman, Latha id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf last_name: Venkataraman orcid: 0000-0002-6957-6089 - first_name: José L. full_name: Segura, José L. last_name: Segura - first_name: Juan full_name: Casado, Juan last_name: Casado citation: ama: Medina Rivero S, García Arroyo P, Li L, et al. Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene. Chemical Communications. 2021;57(5):591-594. doi:10.1039/d0cc07124b apa: Medina Rivero, S., García Arroyo, P., Li, L., Gunasekaran, S., Stuyver, T., Mancheño, M. J., … Casado, J. (2021). Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene. Chemical Communications. Royal Society of Chemistry. https://doi.org/10.1039/d0cc07124b chicago: Medina Rivero, Samara, Paloma García Arroyo, Liang Li, Suman Gunasekaran, Thijs Stuyver, María José Mancheño, Mercedes Alonso, Latha Venkataraman, José L. Segura, and Juan Casado. “Single-Molecule Conductance in a Unique Cross-Conjugated Tetra(Aminoaryl)Ethene.” Chemical Communications. Royal Society of Chemistry, 2021. https://doi.org/10.1039/d0cc07124b. ieee: S. Medina Rivero et al., “Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene,” Chemical Communications, vol. 57, no. 5. Royal Society of Chemistry, pp. 591–594, 2021. ista: Medina Rivero S, García Arroyo P, Li L, Gunasekaran S, Stuyver T, Mancheño MJ, Alonso M, Venkataraman L, Segura JL, Casado J. 2021. Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene. Chemical Communications. 57(5), 591–594. mla: Medina Rivero, Samara, et al. “Single-Molecule Conductance in a Unique Cross-Conjugated Tetra(Aminoaryl)Ethene.” Chemical Communications, vol. 57, no. 5, Royal Society of Chemistry, 2021, pp. 591–94, doi:10.1039/d0cc07124b. short: S. Medina Rivero, P. García Arroyo, L. Li, S. Gunasekaran, T. Stuyver, M.J. Mancheño, M. Alonso, L. Venkataraman, J.L. Segura, J. Casado, Chemical Communications 57 (2021) 591–594. date_created: 2024-09-09T06:44:58Z date_published: 2021-05-01T00:00:00Z date_updated: 2024-12-10T10:23:49Z day: '01' doi: 10.1039/d0cc07124b extern: '1' external_id: pmid: - '33325935' intvolume: ' 57' issue: '5' language: - iso: eng month: '05' oa_version: None page: 591-594 pmid: 1 publication: Chemical Communications publication_identifier: eissn: - 1364-548X issn: - 1359-7345 publication_status: published publisher: Royal Society of Chemistry quality_controlled: '1' scopus_import: '1' status: public title: Single-molecule conductance in a unique cross-conjugated tetra(aminoaryl)ethene type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 57 year: '2021' ... --- _id: '18192' abstract: - lang: eng text: Current quantum simulation experiments are starting to explore nonequilibrium many-body dynamics in previously inaccessible regimes in terms of system sizes and timescales. Therefore, the question emerges as to which observables are best suited to study the dynamics in such quantum many-body systems. Using machine learning techniques, we investigate the dynamics and, in particular, the thermalization behavior of an interacting quantum system that undergoes a nonequilibrium phase transition from an ergodic to a many-body localized phase. We employ supervised and unsupervised training methods to distinguish nonequilibrium from equilibrium data, using the network performance as a probe for the thermalization behavior of the system. We test our methods with experimental snapshots of ultracold atoms taken with a quantum gas microscope. Our results provide a path to analyze highly entangled large-scale quantum states for system sizes where numerical calculations of conventional observables become challenging. article_number: '150504' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: A. full_name: Bohrdt, A. last_name: Bohrdt - first_name: S. full_name: Kim, S. last_name: Kim - first_name: A. full_name: Lukin, A. last_name: Lukin - first_name: M. full_name: Rispoli, M. last_name: Rispoli - first_name: R. full_name: Schittko, R. last_name: Schittko - first_name: M. full_name: Knap, M. last_name: Knap - first_name: M. full_name: Greiner, M. last_name: Greiner - first_name: Julian full_name: Leonard, Julian id: b75b3f45-7995-11ef-9bfd-9a9cd02c3577 last_name: Leonard citation: ama: Bohrdt A, Kim S, Lukin A, et al. Analyzing nonequilibrium quantum states through snapshots with artificial neural networks. Physical Review Letters. 2021;127(15). doi:10.1103/physrevlett.127.150504 apa: Bohrdt, A., Kim, S., Lukin, A., Rispoli, M., Schittko, R., Knap, M., … Leonard, J. (2021). Analyzing nonequilibrium quantum states through snapshots with artificial neural networks. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.127.150504 chicago: Bohrdt, A., S. Kim, A. Lukin, M. Rispoli, R. Schittko, M. Knap, M. Greiner, and Julian Leonard. “Analyzing Nonequilibrium Quantum States through Snapshots with Artificial Neural Networks.” Physical Review Letters. American Physical Society, 2021. https://doi.org/10.1103/physrevlett.127.150504. ieee: A. Bohrdt et al., “Analyzing nonequilibrium quantum states through snapshots with artificial neural networks,” Physical Review Letters, vol. 127, no. 15. American Physical Society, 2021. ista: Bohrdt A, Kim S, Lukin A, Rispoli M, Schittko R, Knap M, Greiner M, Leonard J. 2021. Analyzing nonequilibrium quantum states through snapshots with artificial neural networks. Physical Review Letters. 127(15), 150504. mla: Bohrdt, A., et al. “Analyzing Nonequilibrium Quantum States through Snapshots with Artificial Neural Networks.” Physical Review Letters, vol. 127, no. 15, 150504, American Physical Society, 2021, doi:10.1103/physrevlett.127.150504. short: A. Bohrdt, S. Kim, A. Lukin, M. Rispoli, R. Schittko, M. Knap, M. Greiner, J. Leonard, Physical Review Letters 127 (2021). date_created: 2024-10-07T11:47:11Z date_published: 2021-10-08T00:00:00Z date_updated: 2024-10-08T09:58:03Z day: '08' doi: 10.1103/physrevlett.127.150504 extern: '1' external_id: arxiv: - '2012.11586' intvolume: ' 127' issue: '15' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2012.11586 month: '10' oa: 1 oa_version: Preprint publication: Physical Review Letters publication_identifier: issn: - 0031-9007 - 1079-7114 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Analyzing nonequilibrium quantum states through snapshots with artificial neural networks type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 127 year: '2021' ... --- _id: '18193' abstract: - lang: eng text: "Topological states of matter, such as fractional quantum Hall states, are an active field of research due to their exotic excitations. In particular, ultracold atoms in optical lattices provide a highly controllable and adaptable platform to study such new types of quantum matter. However, finding a clear route to realize non-Abelian quantum Hall states in these systems remains challenging. Here we use the density-matrix renormalization-group (DMRG) method to study the Hofstadter-Bose-Hubbard model at filling factor \U0001D708=1 and find strong indications that at \U0001D6FC=1/6 magnetic flux quanta per plaquette the ground state is a lattice analog of the continuum non-Abelian Pfaffian. We study the on-site correlations of the ground state, which indicate its paired nature at \U0001D708=1, and find an incompressible state characterized by a charge gap in the bulk. We argue that the emergence of a charge density wave on thin cylinders and the behavior of the two- and three-particle correlation functions at short distances provide evidence for the state being closely related to the continuum Pfaffian. The signatures discussed in this letter are accessible in current cold atom experiments and we show that the Pfaffian-like state is readily realizable in few-body systems using adiabatic preparation schemes." article_number: L161101 article_processing_charge: No article_type: letter_note arxiv: 1 author: - first_name: F. A. full_name: Palm, F. A. last_name: Palm - first_name: M. full_name: Buser, M. last_name: Buser - first_name: Julian full_name: Leonard, Julian id: b75b3f45-7995-11ef-9bfd-9a9cd02c3577 last_name: Leonard - first_name: M. full_name: Aidelsburger, M. last_name: Aidelsburger - first_name: U. full_name: Schollwöck, U. last_name: Schollwöck - first_name: F. full_name: Grusdt, F. last_name: Grusdt citation: ama: Palm FA, Buser M, Leonard J, Aidelsburger M, Schollwöck U, Grusdt F. Bosonic Pfaffian state in the Hofstadter-Bose-Hubbard model. Physical Review B. 2021;103(16). doi:10.1103/physrevb.103.l161101 apa: Palm, F. A., Buser, M., Leonard, J., Aidelsburger, M., Schollwöck, U., & Grusdt, F. (2021). Bosonic Pfaffian state in the Hofstadter-Bose-Hubbard model. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.103.l161101 chicago: Palm, F. A., M. Buser, Julian Leonard, M. Aidelsburger, U. Schollwöck, and F. Grusdt. “Bosonic Pfaffian State in the Hofstadter-Bose-Hubbard Model.” Physical Review B. American Physical Society, 2021. https://doi.org/10.1103/physrevb.103.l161101. ieee: F. A. Palm, M. Buser, J. Leonard, M. Aidelsburger, U. Schollwöck, and F. Grusdt, “Bosonic Pfaffian state in the Hofstadter-Bose-Hubbard model,” Physical Review B, vol. 103, no. 16. American Physical Society, 2021. ista: Palm FA, Buser M, Leonard J, Aidelsburger M, Schollwöck U, Grusdt F. 2021. Bosonic Pfaffian state in the Hofstadter-Bose-Hubbard model. Physical Review B. 103(16), L161101. mla: Palm, F. A., et al. “Bosonic Pfaffian State in the Hofstadter-Bose-Hubbard Model.” Physical Review B, vol. 103, no. 16, L161101, American Physical Society, 2021, doi:10.1103/physrevb.103.l161101. short: F.A. Palm, M. Buser, J. Leonard, M. Aidelsburger, U. Schollwöck, F. Grusdt, Physical Review B 103 (2021). date_created: 2024-10-07T11:47:51Z date_published: 2021-04-15T00:00:00Z date_updated: 2024-10-08T09:55:46Z day: '15' doi: 10.1103/physrevb.103.l161101 extern: '1' external_id: arxiv: - '2011.02477' intvolume: ' 103' issue: '16' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2011.02477 month: '04' oa: 1 oa_version: Preprint publication: Physical Review B publication_identifier: eissn: - 2469-9969 issn: - 2469-9950 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Bosonic Pfaffian state in the Hofstadter-Bose-Hubbard model type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 103 year: '2021' ...