---
_id: '588'
abstract:
- lang: eng
text: Quantum metrology uses quantum entanglement - correlations in the properties
of microscopic systems - to improve the statistical precision of physical measurements.
When measuring a signal, such as the phase shift of a light beam or an atomic
state, a prominent limitation to achievable precision arises from the noise associated
with the counting of uncorrelated probe particles. This noise, commonly referred
to as shot noise or projection noise, gives rise to the standard quantum limit
(SQL) to phase resolution. However, it can be mitigated down to the fundamental
Heisenberg limit by entangling the probe particles. Despite considerable experimental
progress in a variety of physical systems, a question that persists is whether
these methods can achieve performance levels that compare favourably with optimized
conventional (non-entangled) systems. Here we demonstrate an approach that achieves
unprecedented levels of metrological improvement using half a million 87Rb atoms
in their 'clock' states. The ensemble is 20.1 ± 0.3 decibels (100-fold) spin-squeezed
via an optical-cavity-based measurement. We directly resolve small microwave-induced
rotations 18.5 ± 0.3 decibels (70-fold) beyond the SQL. The single-shot phase
resolution of 147 microradians achieved by the apparatus is better than that achieved
by the best engineered cold atom sensors despite lower atom numbers. We infer
entanglement of more than 680 ± 35 particles in the atomic ensemble. Applications
include atomic clocks, inertial sensors, and fundamental physics experiments such
as tests of general relativity or searches for electron electric dipole moment.
To this end, we demonstrate an atomic clock measurement with a quantum enhancement
of 10.5 ± 0.3 decibels (11-fold), limited by the phase noise of our microwave
source.
author:
- first_name: Onur
full_name: Onur Hosten
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Nils
full_name: Engelsen, Nils J
last_name: Engelsen
- first_name: Rajiv
full_name: Krishnakumar, Rajiv
last_name: Krishnakumar
- first_name: Mark
full_name: Kasevich, Mark A
last_name: Kasevich
citation:
ama: Hosten O, Engelsen N, Krishnakumar R, Kasevich M. Measurement noise 100 times
lower than the quantum-projection limit using entangled atoms. Nature.
2016;529(7587):505-508. doi:10.1038/nature16176
apa: Hosten, O., Engelsen, N., Krishnakumar, R., & Kasevich, M. (2016). Measurement
noise 100 times lower than the quantum-projection limit using entangled atoms.
Nature. Nature Publishing Group. https://doi.org/10.1038/nature16176
chicago: Hosten, Onur, Nils Engelsen, Rajiv Krishnakumar, and Mark Kasevich. “Measurement
Noise 100 Times Lower than the Quantum-Projection Limit Using Entangled Atoms.”
Nature. Nature Publishing Group, 2016. https://doi.org/10.1038/nature16176.
ieee: O. Hosten, N. Engelsen, R. Krishnakumar, and M. Kasevich, “Measurement noise
100 times lower than the quantum-projection limit using entangled atoms,” Nature,
vol. 529, no. 7587. Nature Publishing Group, pp. 505–508, 2016.
ista: Hosten O, Engelsen N, Krishnakumar R, Kasevich M. 2016. Measurement noise
100 times lower than the quantum-projection limit using entangled atoms. Nature.
529(7587), 505–508.
mla: Hosten, Onur, et al. “Measurement Noise 100 Times Lower than the Quantum-Projection
Limit Using Entangled Atoms.” Nature, vol. 529, no. 7587, Nature Publishing
Group, 2016, pp. 505–08, doi:10.1038/nature16176.
short: O. Hosten, N. Engelsen, R. Krishnakumar, M. Kasevich, Nature 529 (2016) 505–508.
date_created: 2018-12-11T11:47:21Z
date_published: 2016-01-28T00:00:00Z
date_updated: 2021-01-12T08:05:07Z
day: '28'
doi: 10.1038/nature16176
extern: 1
intvolume: ' 529'
issue: '7587'
month: '01'
page: 505 - 508
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '7215'
quality_controlled: 0
status: public
title: Measurement noise 100 times lower than the quantum-projection limit using entangled
atoms
type: journal_article
volume: 529
year: '2016'
...
---
_id: '592'
abstract:
- lang: eng
text: We create up to 20 dB spin-squeezed states of atomic ensembles using an optical
cavity-based measurement. The prepared states are suitable for atomic sensors
that require free space release of the atoms.
article_processing_charge: No
author:
- first_name: Nils
full_name: Engelsen, Nils
last_name: Engelsen
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
- first_name: Rajiv
full_name: Krishnakumar, Rajiv
last_name: Krishnakumar
- first_name: Mark
full_name: Kasevich, Mark
last_name: Kasevich
citation:
ama: 'Engelsen N, Hosten O, Krishnakumar R, Kasevich M. Engineering spin squeezed
states for quantum-enhanced atom interferometry. In: IEEE; 2016.'
apa: 'Engelsen, N., Hosten, O., Krishnakumar, R., & Kasevich, M. (2016). Engineering
spin squeezed states for quantum-enhanced atom interferometry. Presented at the
CLEO: Conference on Lasers and Electro Optics, San Jose, CA, United States: IEEE.'
chicago: Engelsen, Nils, Onur Hosten, Rajiv Krishnakumar, and Mark Kasevich. “Engineering
Spin Squeezed States for Quantum-Enhanced Atom Interferometry.” IEEE, 2016.
ieee: 'N. Engelsen, O. Hosten, R. Krishnakumar, and M. Kasevich, “Engineering spin
squeezed states for quantum-enhanced atom interferometry,” presented at the CLEO:
Conference on Lasers and Electro Optics, San Jose, CA, United States, 2016.'
ista: 'Engelsen N, Hosten O, Krishnakumar R, Kasevich M. 2016. Engineering spin
squeezed states for quantum-enhanced atom interferometry. CLEO: Conference on
Lasers and Electro Optics.'
mla: Engelsen, Nils, et al. Engineering Spin Squeezed States for Quantum-Enhanced
Atom Interferometry. IEEE, 2016.
short: N. Engelsen, O. Hosten, R. Krishnakumar, M. Kasevich, in:, IEEE, 2016.
conference:
end_date: 2016-06-10
location: San Jose, CA, United States
name: 'CLEO: Conference on Lasers and Electro Optics'
start_date: 2016-06-05
date_created: 2018-12-11T11:47:23Z
date_published: 2016-12-16T00:00:00Z
date_updated: 2021-01-12T08:05:15Z
day: '16'
extern: '1'
language:
- iso: eng
main_file_link:
- url: http://ieeexplore.ieee.org/document/7787611/
month: '12'
oa_version: None
publication_status: published
publisher: IEEE
publist_id: '7213'
quality_controlled: '1'
status: public
title: Engineering spin squeezed states for quantum-enhanced atom interferometry
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2016'
...
---
_id: '602'
abstract:
- lang: eng
text: RNA polymerase (Pol) II produces messenger RNA during transcription of protein-coding
genes in all eukaryotic cells. The Pol II structure is known at high resolution
from X-ray crystallography for two yeast species1-3. Structural studies of mammalian
Pol II, however, remain limited to low-resolution electron microscopy analysis
of human Pol II and its complexes with various proteins4-10. Here we report the
3.4 Å resolution cryo-electron microscopy structure of mammalian Pol II in the
form of a transcribing complex comprising DNA template and RNA transcript. We
use bovine Pol II, which is identical to the human enzyme except for seven amino-acid
residues. The obtained atomic model closely resembles its yeast counterpart, but
also reveals unknown features. Binding of nucleic acids to the polymerase involves
'induced fit' of the mobile Pol II clamp and active centre region. DNA downstream
of the transcription bubble contacts a conserved 'TPSA motif' in the jaw domain
of the Pol II subunit RPB5, an interaction that is apparently already established
during transcription initiation7. Upstream DNA emanates from the active centre
cleft at an angle of approximately 105° with respect to downstream DNA. This position
of upstream DNA allows for binding of the general transcription elongation factor
DSIF (SPT4-SPT5) that we localize over the active centre cleft in a conserved
position on the clamp domain of Pol II. Our results define the structure of mammalian
Pol II in its functional state, indicate that previous crystallographic analysis
of yeast Pol II is relevant for understanding gene transcription in all eukaryotes,
and provide a starting point for a mechanistic analysis of human transcription.
article_processing_charge: No
author:
- first_name: Carrie A
full_name: Bernecky, Carrie A
id: 2CB9DFE2-F248-11E8-B48F-1D18A9856A87
last_name: Bernecky
orcid: 0000-0003-0893-7036
- first_name: Franz
full_name: Herzog, Franz
last_name: Herzog
- first_name: Wolfgang
full_name: Baumeister, Wolfgang
last_name: Baumeister
- first_name: Jürgen
full_name: Plitzko, Jürgen
last_name: Plitzko
- first_name: Patrick
full_name: Cramer, Patrick
last_name: Cramer
citation:
ama: Bernecky C, Herzog F, Baumeister W, Plitzko J, Cramer P. Structure of transcribing
mammalian RNA polymerase II. Nature. 2016;529(7587):551-554. doi:10.1038/nature16482
apa: Bernecky, C., Herzog, F., Baumeister, W., Plitzko, J., & Cramer, P. (2016).
Structure of transcribing mammalian RNA polymerase II. Nature. Nature Publishing
Group. https://doi.org/10.1038/nature16482
chicago: Bernecky, Carrie, Franz Herzog, Wolfgang Baumeister, Jürgen Plitzko, and
Patrick Cramer. “Structure of Transcribing Mammalian RNA Polymerase II.” Nature.
Nature Publishing Group, 2016. https://doi.org/10.1038/nature16482.
ieee: C. Bernecky, F. Herzog, W. Baumeister, J. Plitzko, and P. Cramer, “Structure
of transcribing mammalian RNA polymerase II,” Nature, vol. 529, no. 7587.
Nature Publishing Group, pp. 551–554, 2016.
ista: Bernecky C, Herzog F, Baumeister W, Plitzko J, Cramer P. 2016. Structure of
transcribing mammalian RNA polymerase II. Nature. 529(7587), 551–554.
mla: Bernecky, Carrie, et al. “Structure of Transcribing Mammalian RNA Polymerase
II.” Nature, vol. 529, no. 7587, Nature Publishing Group, 2016, pp. 551–54,
doi:10.1038/nature16482.
short: C. Bernecky, F. Herzog, W. Baumeister, J. Plitzko, P. Cramer, Nature 529
(2016) 551–554.
date_created: 2018-12-11T11:47:26Z
date_published: 2016-01-28T00:00:00Z
date_updated: 2021-01-12T08:05:43Z
day: '28'
doi: 10.1038/nature16482
extern: '1'
intvolume: ' 529'
issue: '7587'
language:
- iso: eng
month: '01'
oa_version: None
page: 551 - 554
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '7205'
status: public
title: Structure of transcribing mammalian RNA polymerase II
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 529
year: '2016'
...
---
_id: '6732'
abstract:
- lang: eng
text: Consider the transmission of a polar code of block length N and rate R over
a binary memoryless symmetric channel W and let P e be the block error probability
under successive cancellation decoding. In this paper, we develop new bounds that
characterize the relationship of the parameters R, N, P e , and the quality of
the channel W quantified by its capacity I(W) and its Bhattacharyya parameter
Z(W). In previous work, two main regimes were studied. In the error exponent regime,
the channel W and the rate R <; I(W) are fixed, and it was proved that the error
probability Pe scales roughly as 2 -√N . In the scaling exponent approach, the
channel W and the error probability Pe are fixed and it was proved that the gap
to capacity I(W) - R scales as N -1/μ . Here, μ is called scaling exponent and
this scaling exponent depends on the channel W. A heuristic computation for the
binary erasure channel (BEC) gives μ = 3.627 and it was shown that, for any channel
W, 3.579 ≤ μ ≤ 5.702. Our contributions are as follows. First, we provide the
tighter upper bound μ <;≤ 4.714 valid for any W. With the same technique, we obtain
the upper bound μ ≤ 3.639 for the case of the BEC; this upper bound approaches
very closely the heuristically derived value for the scaling exponent of the erasure
channel. Second, we develop a trade-off between the gap to capacity I(W)- R and
the error probability Pe as the functions of the block length N. In other words,
we neither fix the gap to capacity (error exponent regime) nor the error probability
(scaling exponent regime), but we do consider a moderate deviations regime in
which we study how fast both quantities, as the functions of the block length
N, simultaneously go to 0. Third, we prove that polar codes are not affected by
error floors. To do so, we fix a polar code of block length N and rate R. Then,
we vary the channel W and study the impact of this variation on the error probability.
We show that the error probability Pe scales as the Bhattacharyya parameter Z(W)
raised to a power that scales roughly like VN. This agrees with the scaling in
the error exponent regime.
article_type: original
arxiv: 1
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: S. Hamed
full_name: Hassani, S. Hamed
last_name: Hassani
- first_name: Rudiger L.
full_name: Urbanke, Rudiger L.
last_name: Urbanke
citation:
ama: 'Mondelli M, Hassani SH, Urbanke RL. Unified scaling of polar codes: Error
exponent, scaling exponent, moderate deviations, and error floors. IEEE Transactions
on Information Theory. 2016;62(12):6698-6712. doi:10.1109/tit.2016.2616117'
apa: 'Mondelli, M., Hassani, S. H., & Urbanke, R. L. (2016). Unified scaling
of polar codes: Error exponent, scaling exponent, moderate deviations, and error
floors. IEEE Transactions on Information Theory. IEEE. https://doi.org/10.1109/tit.2016.2616117'
chicago: 'Mondelli, Marco, S. Hamed Hassani, and Rudiger L. Urbanke. “Unified Scaling
of Polar Codes: Error Exponent, Scaling Exponent, Moderate Deviations, and Error
Floors.” IEEE Transactions on Information Theory. IEEE, 2016. https://doi.org/10.1109/tit.2016.2616117.'
ieee: 'M. Mondelli, S. H. Hassani, and R. L. Urbanke, “Unified scaling of polar
codes: Error exponent, scaling exponent, moderate deviations, and error floors,”
IEEE Transactions on Information Theory, vol. 62, no. 12. IEEE, pp. 6698–6712,
2016.'
ista: 'Mondelli M, Hassani SH, Urbanke RL. 2016. Unified scaling of polar codes:
Error exponent, scaling exponent, moderate deviations, and error floors. IEEE
Transactions on Information Theory. 62(12), 6698–6712.'
mla: 'Mondelli, Marco, et al. “Unified Scaling of Polar Codes: Error Exponent, Scaling
Exponent, Moderate Deviations, and Error Floors.” IEEE Transactions on Information
Theory, vol. 62, no. 12, IEEE, 2016, pp. 6698–712, doi:10.1109/tit.2016.2616117.'
short: M. Mondelli, S.H. Hassani, R.L. Urbanke, IEEE Transactions on Information
Theory 62 (2016) 6698–6712.
date_created: 2019-07-31T06:03:49Z
date_published: 2016-12-01T00:00:00Z
date_updated: 2021-01-12T08:08:44Z
day: '01'
doi: 10.1109/tit.2016.2616117
extern: '1'
external_id:
arxiv:
- '1501.02444'
intvolume: ' 62'
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1501.02444
month: '12'
oa: 1
oa_version: Preprint
page: 6698-6712
publication: IEEE Transactions on Information Theory
publication_identifier:
eissn:
- 1557-9654
issn:
- 0018-9448
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: 'Unified scaling of polar codes: Error exponent, scaling exponent, moderate
deviations, and error floors'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 62
year: '2016'
...
---
_id: '6733'
abstract:
- lang: eng
text: 'The question whether RM codes are capacity-achieving is a long-standing open
problem in coding theory that was recently answered in the affirmative for transmission
over erasure channels [1], [2]. Remarkably, the proof does not rely on specific
properties of RM codes, apart from their symmetry. Indeed, the main technical
result consists in showing that any sequence of linear codes, with doubly-transitive
permutation groups, achieves capacity on the memoryless erasure channel under
bit-MAP decoding. Thus, a natural question is what happens under block-MAP decoding.
In [1], [2], by exploiting further symmetries of the code, the bit-MAP threshold
was shown to be sharp enough so that the block erasure probability also converges
to 0. However, this technique relies heavily on the fact that the transmission
is over an erasure channel. We present an alternative approach to strengthen results
regarding the bit-MAP threshold to block-MAP thresholds. This approach is based
on a careful analysis of the weight distribution of RM codes. In particular, the
flavor of the main result is the following: assume that the bit-MAP error probability
decays as N -δ , for some δ > 0. Then, the block-MAP error probability also converges
to 0. This technique applies to transmission over any binary memoryless symmetric
channel. Thus, it can be thought of as a first step in extending the proof that
RM codes are capacity-achieving to the general case.'
arxiv: 1
author:
- first_name: Shrinivas
full_name: Kudekar, Shrinivas
last_name: Kudekar
- first_name: Santhosh
full_name: Kumar, Santhosh
last_name: Kumar
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Henry D.
full_name: Pfister, Henry D.
last_name: Pfister
- first_name: Rudiger
full_name: Urbankez, Rudiger
last_name: Urbankez
citation:
ama: 'Kudekar S, Kumar S, Mondelli M, Pfister HD, Urbankez R. Comparing the bit-MAP
and block-MAP decoding thresholds of Reed-Muller codes on BMS channels. In: 2016
IEEE International Symposium on Information Theory . IEEE; 2016:1755-1759.
doi:10.1109/isit.2016.7541600'
apa: 'Kudekar, S., Kumar, S., Mondelli, M., Pfister, H. D., & Urbankez, R. (2016).
Comparing the bit-MAP and block-MAP decoding thresholds of Reed-Muller codes on
BMS channels. In 2016 IEEE International Symposium on Information Theory
(pp. 1755–1759). Barcelona, Spain: IEEE. https://doi.org/10.1109/isit.2016.7541600'
chicago: Kudekar, Shrinivas, Santhosh Kumar, Marco Mondelli, Henry D. Pfister, and
Rudiger Urbankez. “Comparing the Bit-MAP and Block-MAP Decoding Thresholds of
Reed-Muller Codes on BMS Channels.” In 2016 IEEE International Symposium on
Information Theory , 1755–59. IEEE, 2016. https://doi.org/10.1109/isit.2016.7541600.
ieee: S. Kudekar, S. Kumar, M. Mondelli, H. D. Pfister, and R. Urbankez, “Comparing
the bit-MAP and block-MAP decoding thresholds of Reed-Muller codes on BMS channels,”
in 2016 IEEE International Symposium on Information Theory , Barcelona,
Spain, 2016, pp. 1755–1759.
ista: 'Kudekar S, Kumar S, Mondelli M, Pfister HD, Urbankez R. 2016. Comparing the
bit-MAP and block-MAP decoding thresholds of Reed-Muller codes on BMS channels.
2016 IEEE International Symposium on Information Theory . ISIT: International
Symposium on Information Theory, 1755–1759.'
mla: Kudekar, Shrinivas, et al. “Comparing the Bit-MAP and Block-MAP Decoding Thresholds
of Reed-Muller Codes on BMS Channels.” 2016 IEEE International Symposium on
Information Theory , IEEE, 2016, pp. 1755–59, doi:10.1109/isit.2016.7541600.
short: S. Kudekar, S. Kumar, M. Mondelli, H.D. Pfister, R. Urbankez, in:, 2016 IEEE
International Symposium on Information Theory , IEEE, 2016, pp. 1755–1759.
conference:
end_date: 2016-07-15
location: Barcelona, Spain
name: 'ISIT: International Symposium on Information Theory'
start_date: 2016-07-10
date_created: 2019-07-31T06:36:16Z
date_published: 2016-08-11T00:00:00Z
date_updated: 2021-01-12T08:08:44Z
day: '11'
doi: 10.1109/isit.2016.7541600
extern: '1'
external_id:
arxiv:
- '1601.06048'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1601.06048
month: '08'
oa: 1
oa_version: Preprint
page: 1755-1759
publication: '2016 IEEE International Symposium on Information Theory '
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: Comparing the bit-MAP and block-MAP decoding thresholds of Reed-Muller codes
on BMS channels
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2016'
...
---
_id: '6770'
abstract:
- lang: eng
text: "We describe a new method to compare the bit-MAP and block-MAP decoding thresholds
of Reed-Muller (RM) codes for transmission over a binary memoryless symmetric
channel. The question whether RM codes are capacity-achieving is a long-standing
open problem in coding theory and it has recently been answered in the affirmative
for transmission over\r\nerasure channels. Remarkably, the proof does not rely
on specific properties of RM codes, apart from their symmetry. Indeed, the main
technical result consists in showing that any sequence of linear codes, with doubly-transitive
permutation groups, achieves capacity on the memoryless erasure channel under
bit-MAP decoding. A natural question is what happens under block-MAP decoding.
If the minimum distance of the code family is close to linear (e.g., of order
N/ log(N)), then one can combine an upper bound on the bit-MAP error probability
with a lower bound on the minimum distance to show that the code family is also
capacity-achieving under block-MAP decoding. This strategy is successful for BCH
codes. Unfortunately, the minimum distance of RM codes scales only as √N, which
does not suffice to obtain the desired result. Then, one can exploit further symmetries
of RM codes to show that the bit-MAP threshold is sharp enough so that the block
erasure probability also tends to 0. However, this technique relies heavily on
the fact that the transmission is over an erasure channel.\r\nWe present an alternative
approach to strengthen results regarding the bit-MAP threshold to block-MAP thresholds.
This approach is based on a careful analysis of the weight distribution of RM
codes. In particular, the flavor of the main result is the following: assume that
the bit-MAP error probability decays as N−δ, for some δ > 0. Then, the block-MAP\r\nerror
probability also converges to 0. This technique applies to the transmission over
any binary memoryless symmetric channel. Thus, it can be thought of as a first
step in extending the proof that RM codes are capacity-achieving to the general
case."
author:
- first_name: Marco
full_name: Mondelli, Marco
id: 27EB676C-8706-11E9-9510-7717E6697425
last_name: Mondelli
orcid: 0000-0002-3242-7020
- first_name: Shrinivas
full_name: Kudekar, Shrinivas
last_name: Kudekar
- first_name: Santosh
full_name: Kumar, Santosh
last_name: Kumar
- first_name: Henry D.
full_name: Pfister, Henry D.
last_name: Pfister
- first_name: Eren
full_name: Şaşoğlu, Eren
last_name: Şaşoğlu
- first_name: Rüdiger
full_name: Urbanke, Rüdiger
last_name: Urbanke
citation:
ama: 'Mondelli M, Kudekar S, Kumar S, Pfister HD, Şaşoğlu E, Urbanke R. Reed-Muller
codes: Thresholds and weight distribution. In: 24th International Zurich Seminar
on Communications. ETH Zürich; 2016:50. doi:10.3929/ETHZ-A-010646484'
apa: 'Mondelli, M., Kudekar, S., Kumar, S., Pfister, H. D., Şaşoğlu, E., & Urbanke,
R. (2016). Reed-Muller codes: Thresholds and weight distribution. In 24th International
Zurich Seminar on Communications (p. 50). Zurich, Switzerland: ETH Zürich.
https://doi.org/10.3929/ETHZ-A-010646484'
chicago: 'Mondelli, Marco, Shrinivas Kudekar, Santosh Kumar, Henry D. Pfister, Eren
Şaşoğlu, and Rüdiger Urbanke. “Reed-Muller Codes: Thresholds and Weight Distribution.”
In 24th International Zurich Seminar on Communications, 50. ETH Zürich,
2016. https://doi.org/10.3929/ETHZ-A-010646484.'
ieee: 'M. Mondelli, S. Kudekar, S. Kumar, H. D. Pfister, E. Şaşoğlu, and R. Urbanke,
“Reed-Muller codes: Thresholds and weight distribution,” in 24th International
Zurich Seminar on Communications, Zurich, Switzerland, 2016, p. 50.'
ista: 'Mondelli M, Kudekar S, Kumar S, Pfister HD, Şaşoğlu E, Urbanke R. 2016. Reed-Muller
codes: Thresholds and weight distribution. 24th International Zurich Seminar on
Communications. IZS: International Zurich Seminar on Communications, 50.'
mla: 'Mondelli, Marco, et al. “Reed-Muller Codes: Thresholds and Weight Distribution.”
24th International Zurich Seminar on Communications, ETH Zürich, 2016,
p. 50, doi:10.3929/ETHZ-A-010646484.'
short: M. Mondelli, S. Kudekar, S. Kumar, H.D. Pfister, E. Şaşoğlu, R. Urbanke,
in:, 24th International Zurich Seminar on Communications, ETH Zürich, 2016, p.
50.
conference:
end_date: 2016-03-04
location: Zurich, Switzerland
name: 'IZS: International Zurich Seminar on Communications'
start_date: 2016-03-02
date_created: 2019-08-05T12:43:48Z
date_published: 2016-03-01T00:00:00Z
date_updated: 2021-01-12T08:08:57Z
day: '01'
doi: 10.3929/ETHZ-A-010646484
extern: '1'
language:
- iso: eng
month: '03'
oa_version: None
page: '50'
publication: 24th International Zurich Seminar on Communications
publication_status: published
publisher: ETH Zürich
quality_controlled: '1'
status: public
title: 'Reed-Muller codes: Thresholds and weight distribution'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2016'
...
---
_id: '7068'
abstract:
- lang: eng
text: Electrons in materials with linear dispersion behave as massless Weyl- or
Dirac-quasiparticles, and continue to intrigue due to their close resemblance
to elusive ultra-relativistic particles as well as their potential for future
electronics. Yet the experimental signatures of Weyl-fermions are often subtle
and indirect, in particular if they coexist with conventional, massive quasiparticles.
Here we show a pronounced anomaly in the magnetic torque of the Weyl semimetal
NbAs upon entering the quantum limit state in high magnetic fields. The torque
changes sign in the quantum limit, signalling a reversal of the magnetic anisotropy
that can be directly attributed to the topological nature of the Weyl electrons.
Our results establish that anomalous quantum limit torque measurements provide
a direct experimental method to identify and distinguish Weyl and Dirac systems.
article_number: '12492'
article_processing_charge: No
article_type: original
author:
- first_name: Philip J. W.
full_name: Moll, Philip J. W.
last_name: Moll
- first_name: Andrew C.
full_name: Potter, Andrew C.
last_name: Potter
- first_name: Nityan L.
full_name: Nair, Nityan L.
last_name: Nair
- first_name: B. J.
full_name: Ramshaw, B. J.
last_name: Ramshaw
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: Scott
full_name: Riggs, Scott
last_name: Riggs
- first_name: Bin
full_name: Zeng, Bin
last_name: Zeng
- first_name: Nirmal J.
full_name: Ghimire, Nirmal J.
last_name: Ghimire
- first_name: Eric D.
full_name: Bauer, Eric D.
last_name: Bauer
- first_name: Robert
full_name: Kealhofer, Robert
last_name: Kealhofer
- first_name: Filip
full_name: Ronning, Filip
last_name: Ronning
- first_name: James G.
full_name: Analytis, James G.
last_name: Analytis
citation:
ama: Moll PJW, Potter AC, Nair NL, et al. Magnetic torque anomaly in the quantum
limit of Weyl semimetals. Nature Communications. 2016;7. doi:10.1038/ncomms12492
apa: Moll, P. J. W., Potter, A. C., Nair, N. L., Ramshaw, B. J., Modic, K. A., Riggs,
S., … Analytis, J. G. (2016). Magnetic torque anomaly in the quantum limit of
Weyl semimetals. Nature Communications. Springer Nature. https://doi.org/10.1038/ncomms12492
chicago: Moll, Philip J. W., Andrew C. Potter, Nityan L. Nair, B. J. Ramshaw, Kimberly
A Modic, Scott Riggs, Bin Zeng, et al. “Magnetic Torque Anomaly in the Quantum
Limit of Weyl Semimetals.” Nature Communications. Springer Nature, 2016.
https://doi.org/10.1038/ncomms12492.
ieee: P. J. W. Moll et al., “Magnetic torque anomaly in the quantum limit
of Weyl semimetals,” Nature Communications, vol. 7. Springer Nature, 2016.
ista: Moll PJW, Potter AC, Nair NL, Ramshaw BJ, Modic KA, Riggs S, Zeng B, Ghimire
NJ, Bauer ED, Kealhofer R, Ronning F, Analytis JG. 2016. Magnetic torque anomaly
in the quantum limit of Weyl semimetals. Nature Communications. 7, 12492.
mla: Moll, Philip J. W., et al. “Magnetic Torque Anomaly in the Quantum Limit of
Weyl Semimetals.” Nature Communications, vol. 7, 12492, Springer Nature,
2016, doi:10.1038/ncomms12492.
short: P.J.W. Moll, A.C. Potter, N.L. Nair, B.J. Ramshaw, K.A. Modic, S. Riggs,
B. Zeng, N.J. Ghimire, E.D. Bauer, R. Kealhofer, F. Ronning, J.G. Analytis, Nature
Communications 7 (2016).
date_created: 2019-11-19T13:20:53Z
date_published: 2016-08-22T00:00:00Z
date_updated: 2021-01-12T08:11:40Z
day: '22'
ddc:
- '530'
doi: 10.1038/ncomms12492
extern: '1'
file:
- access_level: open_access
checksum: e3272ed18d22187406b30be48a56e7b2
content_type: application/pdf
creator: dernst
date_created: 2019-11-26T12:52:19Z
date_updated: 2020-07-14T12:47:48Z
file_id: '7114'
file_name: 2016_NatureComm_Moll.pdf
file_size: 663911
relation: main_file
file_date_updated: 2020-07-14T12:47:48Z
has_accepted_license: '1'
intvolume: ' 7'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Magnetic torque anomaly in the quantum limit of Weyl semimetals
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2016'
...
---
OA_place: publisher
OA_type: gold
_id: '7069'
abstract:
- lang: eng
text: The observation of a reconstructed Fermi surface via quantum oscillations
in hole-doped cuprates opened a path towards identifying broken symmetry states
in the pseudogap regime. However, such an identification has remained inconclusive
due to the multi-frequency quantum oscillation spectra and complications accounting
for bilayer effects in most studies. We overcome these impediments with high-resolution
measurements on the structurally simpler cuprate HgBa2CuO4+δ (Hg1201), which features
one CuO2 plane per primitive unit cell. We find only a single oscillatory component
with no signatures of magnetic breakdown tunnelling to additional orbits. Therefore,
the Fermi surface comprises a single quasi-two-dimensional pocket. Quantitative
modelling of these results indicates that a biaxial charge density wave within
each CuO2 plane is responsible for the reconstruction and rules out criss-crossed
charge stripes between layers as a viable alternative in Hg1201. Lastly, we determine
that the characteristic gap between reconstructed pockets is a significant fraction
of the pseudogap energy.
article_number: '12244'
article_processing_charge: No
article_type: original
author:
- first_name: M. K.
full_name: Chan, M. K.
last_name: Chan
- first_name: N.
full_name: Harrison, N.
last_name: Harrison
- first_name: R. D.
full_name: McDonald, R. D.
last_name: McDonald
- first_name: B. J.
full_name: Ramshaw, B. J.
last_name: Ramshaw
- first_name: Kimberly A
full_name: Modic, Kimberly A
id: 13C26AC0-EB69-11E9-87C6-5F3BE6697425
last_name: Modic
orcid: 0000-0001-9760-3147
- first_name: N.
full_name: Barišić, N.
last_name: Barišić
- first_name: M.
full_name: Greven, M.
last_name: Greven
citation:
ama: Chan MK, Harrison N, McDonald RD, et al. Single reconstructed Fermi surface
pocket in an underdoped single-layer cuprate superconductor. Nature Communications.
2016;7. doi:10.1038/ncomms12244
apa: Chan, M. K., Harrison, N., McDonald, R. D., Ramshaw, B. J., Modic, K. A., Barišić,
N., & Greven, M. (2016). Single reconstructed Fermi surface pocket in an underdoped
single-layer cuprate superconductor. Nature Communications. Springer Nature.
https://doi.org/10.1038/ncomms12244
chicago: Chan, M. K., N. Harrison, R. D. McDonald, B. J. Ramshaw, Kimberly A Modic,
N. Barišić, and M. Greven. “Single Reconstructed Fermi Surface Pocket in an Underdoped
Single-Layer Cuprate Superconductor.” Nature Communications. Springer Nature,
2016. https://doi.org/10.1038/ncomms12244.
ieee: M. K. Chan et al., “Single reconstructed Fermi surface pocket in an
underdoped single-layer cuprate superconductor,” Nature Communications,
vol. 7. Springer Nature, 2016.
ista: Chan MK, Harrison N, McDonald RD, Ramshaw BJ, Modic KA, Barišić N, Greven
M. 2016. Single reconstructed Fermi surface pocket in an underdoped single-layer
cuprate superconductor. Nature Communications. 7, 12244.
mla: Chan, M. K., et al. “Single Reconstructed Fermi Surface Pocket in an Underdoped
Single-Layer Cuprate Superconductor.” Nature Communications, vol. 7, 12244,
Springer Nature, 2016, doi:10.1038/ncomms12244.
short: M.K. Chan, N. Harrison, R.D. McDonald, B.J. Ramshaw, K.A. Modic, N. Barišić,
M. Greven, Nature Communications 7 (2016).
date_created: 2019-11-19T13:21:23Z
date_published: 2016-07-22T00:00:00Z
date_updated: 2025-01-22T14:31:10Z
day: '22'
doi: 10.1038/ncomms12244
extern: '1'
intvolume: ' 7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/ncomms12244
month: '07'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Single reconstructed Fermi surface pocket in an underdoped single-layer cuprate
superconductor
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2016'
...
---
_id: '7141'
article_processing_charge: No
article_type: original
author:
- first_name: Chiara
full_name: Rolando, Chiara
last_name: Rolando
- first_name: Andrea
full_name: Erni, Andrea
last_name: Erni
- first_name: Alice
full_name: Grison, Alice
last_name: Grison
- first_name: Robert J
full_name: Beattie, Robert J
id: 2E26DF60-F248-11E8-B48F-1D18A9856A87
last_name: Beattie
orcid: 0000-0002-8483-8753
- first_name: Anna
full_name: Engler, Anna
last_name: Engler
- first_name: Paul J.
full_name: Gokhale, Paul J.
last_name: Gokhale
- first_name: Marta
full_name: Milo, Marta
last_name: Milo
- first_name: Thomas
full_name: Wegleiter, Thomas
last_name: Wegleiter
- first_name: Sebastian
full_name: Jessberger, Sebastian
last_name: Jessberger
- first_name: Verdon
full_name: Taylor, Verdon
last_name: Taylor
citation:
ama: Rolando C, Erni A, Grison A, et al. Multipotency of adult hippocampal NSCs
in vivo is restricted by Drosha/NFIB. Cell Stem Cell. 2016;19(5):653-662.
doi:10.1016/j.stem.2016.07.003
apa: Rolando, C., Erni, A., Grison, A., Beattie, R. J., Engler, A., Gokhale, P.
J., … Taylor, V. (2016). Multipotency of adult hippocampal NSCs in vivo is restricted
by Drosha/NFIB. Cell Stem Cell. Elsevier. https://doi.org/10.1016/j.stem.2016.07.003
chicago: Rolando, Chiara, Andrea Erni, Alice Grison, Robert J Beattie, Anna Engler,
Paul J. Gokhale, Marta Milo, Thomas Wegleiter, Sebastian Jessberger, and Verdon
Taylor. “Multipotency of Adult Hippocampal NSCs in Vivo Is Restricted by Drosha/NFIB.”
Cell Stem Cell. Elsevier, 2016. https://doi.org/10.1016/j.stem.2016.07.003.
ieee: C. Rolando et al., “Multipotency of adult hippocampal NSCs in vivo
is restricted by Drosha/NFIB,” Cell Stem Cell, vol. 19, no. 5. Elsevier,
pp. 653–662, 2016.
ista: Rolando C, Erni A, Grison A, Beattie RJ, Engler A, Gokhale PJ, Milo M, Wegleiter
T, Jessberger S, Taylor V. 2016. Multipotency of adult hippocampal NSCs in vivo
is restricted by Drosha/NFIB. Cell Stem Cell. 19(5), 653–662.
mla: Rolando, Chiara, et al. “Multipotency of Adult Hippocampal NSCs in Vivo Is
Restricted by Drosha/NFIB.” Cell Stem Cell, vol. 19, no. 5, Elsevier, 2016,
pp. 653–62, doi:10.1016/j.stem.2016.07.003.
short: C. Rolando, A. Erni, A. Grison, R.J. Beattie, A. Engler, P.J. Gokhale, M.
Milo, T. Wegleiter, S. Jessberger, V. Taylor, Cell Stem Cell 19 (2016) 653–662.
date_created: 2019-11-28T13:09:09Z
date_published: 2016-08-16T00:00:00Z
date_updated: 2021-01-12T08:12:00Z
day: '16'
doi: 10.1016/j.stem.2016.07.003
extern: '1'
intvolume: ' 19'
issue: '5'
language:
- iso: eng
month: '08'
oa_version: None
page: 653-662
publication: Cell Stem Cell
publication_identifier:
issn:
- 1934-5909
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Multipotency of adult hippocampal NSCs in vivo is restricted by Drosha/NFIB
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 19
year: '2016'
...
---
_id: '7279'
abstract:
- lang: eng
text: Kinetics of electrochemical reactions are several orders of magnitude slower
in solids than in liquids as a result of the much lower ion diffusivity. Yet,
the solid state maximizes the density of redox species, which is at least two
orders of magnitude lower in liquids because of solubility limitations. With regard
to electrochemical energy storage devices, this leads to high-energy batteries
with limited power and high-power supercapacitors with a well-known energy deficiency.
For such devices the ideal system should endow the liquid state with a density
of redox species close to the solid state. Here we report an approach based on
biredox ionic liquids to achieve bulk-like redox density at liquid-like fast kinetics.
The cation and anion of these biredox ionic liquids bear moieties that undergo
very fast reversible redox reactions. As a first demonstration of their potential
for high-capacity/high-rate charge storage, we used them in redox supercapacitors.
These ionic liquids are able to decouple charge storage from an ion-accessible
electrode surface, by storing significant charge in the pores of the electrodes,
to minimize self-discharge and leakage current as a result of retaining the redox
species in the pores, and to raise working voltage due to their wide electrochemical
window.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Eléonore
full_name: Mourad, Eléonore
last_name: Mourad
- first_name: Laura
full_name: Coustan, Laura
last_name: Coustan
- first_name: Pierre
full_name: Lannelongue, Pierre
last_name: Lannelongue
- first_name: Dodzi
full_name: Zigah, Dodzi
last_name: Zigah
- first_name: Ahmad
full_name: Mehdi, Ahmad
last_name: Mehdi
- first_name: André
full_name: Vioux, André
last_name: Vioux
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Frédéric
full_name: Favier, Frédéric
last_name: Favier
- first_name: Olivier
full_name: Fontaine, Olivier
last_name: Fontaine
citation:
ama: Mourad E, Coustan L, Lannelongue P, et al. Biredox ionic liquids with solid-like
redox density in the liquid state for high-energy supercapacitors. Nature Materials.
2016;16(4):446-453. doi:10.1038/nmat4808
apa: Mourad, E., Coustan, L., Lannelongue, P., Zigah, D., Mehdi, A., Vioux, A.,
… Fontaine, O. (2016). Biredox ionic liquids with solid-like redox density in
the liquid state for high-energy supercapacitors. Nature Materials. Springer
Nature. https://doi.org/10.1038/nmat4808
chicago: Mourad, Eléonore, Laura Coustan, Pierre Lannelongue, Dodzi Zigah, Ahmad
Mehdi, André Vioux, Stefan Alexander Freunberger, Frédéric Favier, and Olivier
Fontaine. “Biredox Ionic Liquids with Solid-like Redox Density in the Liquid State
for High-Energy Supercapacitors.” Nature Materials. Springer Nature, 2016.
https://doi.org/10.1038/nmat4808.
ieee: E. Mourad et al., “Biredox ionic liquids with solid-like redox density
in the liquid state for high-energy supercapacitors,” Nature Materials,
vol. 16, no. 4. Springer Nature, pp. 446–453, 2016.
ista: Mourad E, Coustan L, Lannelongue P, Zigah D, Mehdi A, Vioux A, Freunberger
SA, Favier F, Fontaine O. 2016. Biredox ionic liquids with solid-like redox density
in the liquid state for high-energy supercapacitors. Nature Materials. 16(4),
446–453.
mla: Mourad, Eléonore, et al. “Biredox Ionic Liquids with Solid-like Redox Density
in the Liquid State for High-Energy Supercapacitors.” Nature Materials,
vol. 16, no. 4, Springer Nature, 2016, pp. 446–53, doi:10.1038/nmat4808.
short: E. Mourad, L. Coustan, P. Lannelongue, D. Zigah, A. Mehdi, A. Vioux, S.A.
Freunberger, F. Favier, O. Fontaine, Nature Materials 16 (2016) 446–453.
date_created: 2020-01-15T07:27:54Z
date_published: 2016-11-28T00:00:00Z
date_updated: 2021-01-12T08:12:43Z
day: '28'
doi: 10.1038/nmat4808
extern: '1'
external_id:
arxiv:
- '1711.11518'
intvolume: ' 16'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1711.11518
month: '11'
oa: 1
oa_version: Preprint
page: 446-453
publication: Nature Materials
publication_identifier:
issn:
- 1476-1122
- 1476-4660
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Biredox ionic liquids with solid-like redox density in the liquid state for
high-energy supercapacitors
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2016'
...
---
_id: '7293'
abstract:
- lang: eng
text: If proton exchange membrane fuel cells (PEMFC) are ever to succeed in sustainable
energy landscape as a potential zero emission technology, it is inevitable to
reduce electricity production cost associated mainly with its MEAs, cell hardware
and gas storage units. We demonstrate a diverse strategy for achieving this target
with a concomitant amplification of its specific energy and power, by rolling
a thin graphene oxide (GO) based MEA alone into a tubular and air breathing architecture
with internal fuel storage. The unique properties of GO being a barrier for molecular
fuels and proton conducting to construct a GO based cylindrical MEA. This makes
the tubular PEMFC ∼75 times lighter, featuring ∼37 and ∼92 times respectively,
the power and energy per overall weight, making it a potential candidate for portable
applications. The intrinsic electrochemical kinetics at the three-phase boundary
are somewhat affected by the bending of the MEA, albeit at overall reduction in
power production cost.
article_processing_charge: No
article_type: original
author:
- first_name: Ravikumar
full_name: Thimmappa, Ravikumar
last_name: Thimmappa
- first_name: Mruthyunjayachari
full_name: Chattanahalli Devendrachari, Mruthyunjayachari
last_name: Chattanahalli Devendrachari
- first_name: Shahid
full_name: Shafi, Shahid
last_name: Shafi
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Musthafa
full_name: Ottakam Thotiyl, Musthafa
last_name: Ottakam Thotiyl
citation:
ama: Thimmappa R, Chattanahalli Devendrachari M, Shafi S, Freunberger SA, Ottakam
Thotiyl M. Proton conducting hollow graphene oxide cylinder as molecular fuel
barrier for tubular H2-air fuel cell. International Journal of Hydrogen Energy.
2016;41(47):22305-22315. doi:10.1016/j.ijhydene.2016.08.057
apa: Thimmappa, R., Chattanahalli Devendrachari, M., Shafi, S., Freunberger, S.
A., & Ottakam Thotiyl, M. (2016). Proton conducting hollow graphene oxide
cylinder as molecular fuel barrier for tubular H2-air fuel cell. International
Journal of Hydrogen Energy. Elsevier. https://doi.org/10.1016/j.ijhydene.2016.08.057
chicago: Thimmappa, Ravikumar, Mruthyunjayachari Chattanahalli Devendrachari, Shahid
Shafi, Stefan Alexander Freunberger, and Musthafa Ottakam Thotiyl. “Proton Conducting
Hollow Graphene Oxide Cylinder as Molecular Fuel Barrier for Tubular H2-Air Fuel
Cell.” International Journal of Hydrogen Energy. Elsevier, 2016. https://doi.org/10.1016/j.ijhydene.2016.08.057.
ieee: R. Thimmappa, M. Chattanahalli Devendrachari, S. Shafi, S. A. Freunberger,
and M. Ottakam Thotiyl, “Proton conducting hollow graphene oxide cylinder as molecular
fuel barrier for tubular H2-air fuel cell,” International Journal of Hydrogen
Energy, vol. 41, no. 47. Elsevier, pp. 22305–22315, 2016.
ista: Thimmappa R, Chattanahalli Devendrachari M, Shafi S, Freunberger SA, Ottakam
Thotiyl M. 2016. Proton conducting hollow graphene oxide cylinder as molecular
fuel barrier for tubular H2-air fuel cell. International Journal of Hydrogen Energy.
41(47), 22305–22315.
mla: Thimmappa, Ravikumar, et al. “Proton Conducting Hollow Graphene Oxide Cylinder
as Molecular Fuel Barrier for Tubular H2-Air Fuel Cell.” International Journal
of Hydrogen Energy, vol. 41, no. 47, Elsevier, 2016, pp. 22305–15, doi:10.1016/j.ijhydene.2016.08.057.
short: R. Thimmappa, M. Chattanahalli Devendrachari, S. Shafi, S.A. Freunberger,
M. Ottakam Thotiyl, International Journal of Hydrogen Energy 41 (2016) 22305–22315.
date_created: 2020-01-15T12:15:57Z
date_published: 2016-12-21T00:00:00Z
date_updated: 2021-01-12T08:12:49Z
day: '21'
doi: 10.1016/j.ijhydene.2016.08.057
extern: '1'
intvolume: ' 41'
issue: '47'
language:
- iso: eng
month: '12'
oa_version: None
page: 22305-22315
publication: International Journal of Hydrogen Energy
publication_identifier:
issn:
- 0360-3199
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Proton conducting hollow graphene oxide cylinder as molecular fuel barrier
for tubular H2-air fuel cell
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 41
year: '2016'
...
---
_id: '7294'
abstract:
- lang: eng
text: Mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres were prepared by
non-hydrolytic sol–gel from TiCl4, VOCl3, and iPr2O at 110 °C without any solvent
or additives. The samples were characterized by elemental analysis, X-ray diffraction,
Raman spectroscopy, scanning electron microscopy, nitrogen physisorption, and
impedance measurements. At low vanadium loadings, only TiO2 anatase was detected,
and V2O5 scherbinaite was also detected at high vanadium loadings. The texture
of the samples depended on the V loading, but all the samples appeared built of
primary nanoparticles (≈10–20 nm in size) that aggregate to form mesoporous micron-sized
spheres. The lithium insertion properties of these materials were evaluated by
galvanostatic measurements taken using coin-type cells, in view of their application
as electrode for rechargeable Li-ion batteries. The mesoporous TiO2 microspheres
showed good performances, with a specific reversible capacity of 145 and 128 mAh
g−1 at C/2 and C, respectively (C = 335.6 mA g−1), good coulombic efficiency,
and a moderate capacity fade (6 %) from the 2nd to the 20th cycle at C/20. Although
the addition of V effectively increased the electronic conductivity of the powders,
the specific reversible capacity and cycling performances of the TiO2–V2O5 samples
were only minimally improved for a 5 at% V loading and were lower at higher V
loading.
article_processing_charge: No
article_type: original
author:
- first_name: A. M.
full_name: Escamilla-Pérez, A. M.
last_name: Escamilla-Pérez
- first_name: N.
full_name: Louvain, N.
last_name: Louvain
- first_name: M.
full_name: Kaschowitz, M.
last_name: Kaschowitz
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: O.
full_name: Fontaine, O.
last_name: Fontaine
- first_name: B.
full_name: Boury, B.
last_name: Boury
- first_name: N.
full_name: Brun, N.
last_name: Brun
- first_name: P. H.
full_name: Mutin, P. H.
last_name: Mutin
citation:
ama: Escamilla-Pérez AM, Louvain N, Kaschowitz M, et al. Lithium insertion properties
of mesoporous nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic
sol–gel. Journal of Sol-Gel Science and Technology. 2016;79(2):270-278.
doi:10.1007/s10971-016-4037-9
apa: Escamilla-Pérez, A. M., Louvain, N., Kaschowitz, M., Freunberger, S. A., Fontaine,
O., Boury, B., … Mutin, P. H. (2016). Lithium insertion properties of mesoporous
nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel.
Journal of Sol-Gel Science and Technology. Springer Nature. https://doi.org/10.1007/s10971-016-4037-9
chicago: Escamilla-Pérez, A. M., N. Louvain, M. Kaschowitz, Stefan Alexander Freunberger,
O. Fontaine, B. Boury, N. Brun, and P. H. Mutin. “Lithium Insertion Properties
of Mesoporous Nanocrystalline TiO2 and TiO2–V2O5 Microspheres Prepared by Non-Hydrolytic
Sol–Gel.” Journal of Sol-Gel Science and Technology. Springer Nature, 2016.
https://doi.org/10.1007/s10971-016-4037-9.
ieee: A. M. Escamilla-Pérez et al., “Lithium insertion properties of mesoporous
nanocrystalline TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel,”
Journal of Sol-Gel Science and Technology, vol. 79, no. 2. Springer Nature,
pp. 270–278, 2016.
ista: Escamilla-Pérez AM, Louvain N, Kaschowitz M, Freunberger SA, Fontaine O, Boury
B, Brun N, Mutin PH. 2016. Lithium insertion properties of mesoporous nanocrystalline
TiO2 and TiO2–V2O5 microspheres prepared by non-hydrolytic sol–gel. Journal of
Sol-Gel Science and Technology. 79(2), 270–278.
mla: Escamilla-Pérez, A. M., et al. “Lithium Insertion Properties of Mesoporous
Nanocrystalline TiO2 and TiO2–V2O5 Microspheres Prepared by Non-Hydrolytic Sol–Gel.”
Journal of Sol-Gel Science and Technology, vol. 79, no. 2, Springer Nature,
2016, pp. 270–78, doi:10.1007/s10971-016-4037-9.
short: A.M. Escamilla-Pérez, N. Louvain, M. Kaschowitz, S.A. Freunberger, O. Fontaine,
B. Boury, N. Brun, P.H. Mutin, Journal of Sol-Gel Science and Technology 79 (2016)
270–278.
date_created: 2020-01-15T12:16:08Z
date_published: 2016-04-08T00:00:00Z
date_updated: 2021-01-12T08:12:49Z
day: '08'
doi: 10.1007/s10971-016-4037-9
extern: '1'
intvolume: ' 79'
issue: '2'
language:
- iso: eng
month: '04'
oa_version: None
page: 270-278
publication: Journal of Sol-Gel Science and Technology
publication_identifier:
issn:
- 0928-0707
- 1573-4846
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Lithium insertion properties of mesoporous nanocrystalline TiO2 and TiO2–V2O5
microspheres prepared by non-hydrolytic sol–gel
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 79
year: '2016'
...
---
_id: '7295'
abstract:
- lang: eng
text: Redox ionic liquids consisting of ions bearing redox moieties are receiving
increasing interest in electrochemical applications, as they associate electroactive
properties with the classical properties of ionic liquids. Here, biredox ionic
liquid electrolytes are described in which both anion and cation are functionalized
with anthraquinone and 2,2,6,6-tetramethylpiperidinyl-1-oxyl (TEMPO) groups, respectively.
In-depth investigations based on crossed experimental and theoretical studies
were carried out to elucidate how the bulkiness of ions bearing a redox moiety
impacted electron and mass transfers, and accordingly the efficiency of electrochemical
devices. The values of solvated radii of different redox ions, as well as the
related kinetic constants, were extracted from cyclic voltammetry experiments.
Reformulating the basic relations of electron transfer theory (based on Marcus-Hush
theory) evidenced that in such redox species, with an unsymmetrical located redox
centre, the electron transfer was not governed by the overall size of the solvated
redox species, but rather by the radius of the redox active subunit, which takes
preferential orientation towards the surface, thus allowing higher kinetic constants
than what classical theory would predict. This vision opens ample opportunities
for biredox ILs as electrolytes in electrochemical devices.
article_processing_charge: No
article_type: original
author:
- first_name: Eléonore
full_name: Mourad, Eléonore
last_name: Mourad
- first_name: Laura
full_name: Coustan, Laura
last_name: Coustan
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Ahmad
full_name: Mehdi, Ahmad
last_name: Mehdi
- first_name: André
full_name: Vioux, André
last_name: Vioux
- first_name: Frédérique
full_name: Favier, Frédérique
last_name: Favier
- first_name: Olivier
full_name: Fontaine, Olivier
last_name: Fontaine
citation:
ama: 'Mourad E, Coustan L, Freunberger SA, et al. Biredox ionic liquids: Electrochemical
investigation and impact of ion size on electron transfer. Electrochimica Acta.
2016;206(7):513-523. doi:10.1016/j.electacta.2016.02.211'
apa: 'Mourad, E., Coustan, L., Freunberger, S. A., Mehdi, A., Vioux, A., Favier,
F., & Fontaine, O. (2016). Biredox ionic liquids: Electrochemical investigation
and impact of ion size on electron transfer. Electrochimica Acta. Elsevier.
https://doi.org/10.1016/j.electacta.2016.02.211'
chicago: 'Mourad, Eléonore, Laura Coustan, Stefan Alexander Freunberger, Ahmad Mehdi,
André Vioux, Frédérique Favier, and Olivier Fontaine. “Biredox Ionic Liquids:
Electrochemical Investigation and Impact of Ion Size on Electron Transfer.” Electrochimica
Acta. Elsevier, 2016. https://doi.org/10.1016/j.electacta.2016.02.211.'
ieee: 'E. Mourad et al., “Biredox ionic liquids: Electrochemical investigation
and impact of ion size on electron transfer,” Electrochimica Acta, vol.
206, no. 7. Elsevier, pp. 513–523, 2016.'
ista: 'Mourad E, Coustan L, Freunberger SA, Mehdi A, Vioux A, Favier F, Fontaine
O. 2016. Biredox ionic liquids: Electrochemical investigation and impact of ion
size on electron transfer. Electrochimica Acta. 206(7), 513–523.'
mla: 'Mourad, Eléonore, et al. “Biredox Ionic Liquids: Electrochemical Investigation
and Impact of Ion Size on Electron Transfer.” Electrochimica Acta, vol.
206, no. 7, Elsevier, 2016, pp. 513–23, doi:10.1016/j.electacta.2016.02.211.'
short: E. Mourad, L. Coustan, S.A. Freunberger, A. Mehdi, A. Vioux, F. Favier, O.
Fontaine, Electrochimica Acta 206 (2016) 513–523.
date_created: 2020-01-15T12:16:17Z
date_published: 2016-07-10T00:00:00Z
date_updated: 2021-01-12T08:12:50Z
day: '10'
doi: 10.1016/j.electacta.2016.02.211
extern: '1'
intvolume: ' 206'
issue: '7'
language:
- iso: eng
month: '07'
oa_version: None
page: 513-523
publication: Electrochimica Acta
publication_identifier:
issn:
- 0013-4686
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: 'Biredox ionic liquids: Electrochemical investigation and impact of ion size
on electron transfer'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 206
year: '2016'
...
---
OA_place: publisher
OA_type: gold
_id: '7296'
abstract:
- lang: eng
text: Within the scope of developing a multi-physical model describing battery behavior
during and after the mechanical load (accelerations, intrusions) of a vehicle’s
high voltage battery, an internal short circuit model is of deep interest for
a virtual hazard assessment. The internal short resistance and the size of the
affected area must be known as a minimum for determining the released heat and,
in consequence, the temperatures. The internal short resistance of purpose-built
dummy pouch cells, filled with electrolyte-like solvent without conductive salt,
has thus been measured in a given short area under various compressive loads.
The resistances for different short scenarios obtained are analyzed and described
in a mathematical form. Short circuit experiments with dummy cells using an external
power source have also been carried out. This set-up allows the measurement of
the temperature evolution at a known current and a determination of the actual
short resistance. The post-mortem analysis of the samples shows a correlation
between the maximum temperatures, released short heat and the separator melt diameter.
article_number: '8'
article_processing_charge: Yes
article_type: original
author:
- first_name: Theo
full_name: Volck, Theo
last_name: Volck
- first_name: Wolfgang
full_name: Sinz, Wolfgang
last_name: Sinz
- first_name: Gregor
full_name: Gstrein, Gregor
last_name: Gstrein
- first_name: Christoph
full_name: Breitfuss, Christoph
last_name: Breitfuss
- first_name: Simon
full_name: Heindl, Simon
last_name: Heindl
- first_name: Hermann
full_name: Steffan, Hermann
last_name: Steffan
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Martin
full_name: Wilkening, Martin
last_name: Wilkening
- first_name: Marlena
full_name: Uitz, Marlena
last_name: Uitz
- first_name: Clemens
full_name: Fink, Clemens
last_name: Fink
- first_name: Alexander
full_name: Geier, Alexander
last_name: Geier
citation:
ama: Volck T, Sinz W, Gstrein G, et al. Method for determination of the internal
short resistance and heat evolution at different mechanical loads of a Lithium
ion battery cell based on dummy pouch cells. Batteries. 2016;2(2). doi:10.3390/batteries2020008
apa: Volck, T., Sinz, W., Gstrein, G., Breitfuss, C., Heindl, S., Steffan, H., …
Geier, A. (2016). Method for determination of the internal short resistance and
heat evolution at different mechanical loads of a Lithium ion battery cell based
on dummy pouch cells. Batteries. MDPI AG. https://doi.org/10.3390/batteries2020008
chicago: Volck, Theo, Wolfgang Sinz, Gregor Gstrein, Christoph Breitfuss, Simon
Heindl, Hermann Steffan, Stefan Alexander Freunberger, et al. “Method for Determination
of the Internal Short Resistance and Heat Evolution at Different Mechanical Loads
of a Lithium Ion Battery Cell Based on Dummy Pouch Cells.” Batteries. MDPI
AG, 2016. https://doi.org/10.3390/batteries2020008.
ieee: T. Volck et al., “Method for determination of the internal short resistance
and heat evolution at different mechanical loads of a Lithium ion battery cell
based on dummy pouch cells,” Batteries, vol. 2, no. 2. MDPI AG, 2016.
ista: Volck T, Sinz W, Gstrein G, Breitfuss C, Heindl S, Steffan H, Freunberger
SA, Wilkening M, Uitz M, Fink C, Geier A. 2016. Method for determination of the
internal short resistance and heat evolution at different mechanical loads of
a Lithium ion battery cell based on dummy pouch cells. Batteries. 2(2), 8.
mla: Volck, Theo, et al. “Method for Determination of the Internal Short Resistance
and Heat Evolution at Different Mechanical Loads of a Lithium Ion Battery Cell
Based on Dummy Pouch Cells.” Batteries, vol. 2, no. 2, 8, MDPI AG, 2016,
doi:10.3390/batteries2020008.
short: T. Volck, W. Sinz, G. Gstrein, C. Breitfuss, S. Heindl, H. Steffan, S.A.
Freunberger, M. Wilkening, M. Uitz, C. Fink, A. Geier, Batteries 2 (2016).
date_created: 2020-01-15T12:16:31Z
date_published: 2016-04-07T00:00:00Z
date_updated: 2025-05-20T06:19:52Z
day: '07'
ddc:
- '540'
doi: 10.3390/batteries2020008
extern: '1'
intvolume: ' 2'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/batteries2020008
month: '04'
oa: 1
oa_version: Published Version
publication: Batteries
publication_identifier:
issn:
- 2313-0105
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Method for determination of the internal short resistance and heat evolution
at different mechanical loads of a Lithium ion battery cell based on dummy pouch
cells
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2016'
...
---
_id: '7297'
abstract:
- lang: eng
text: Redox mediators facilitate the oxidation of the highly insulating discharge
product in metal–oxygen batteries during recharge and offer opportunities to achieve
high reversible capacities. Now a design principle for selecting redox mediators
that can recharge the batteries more efficiently is suggested.
article_number: '16074'
article_processing_charge: No
article_type: original
author:
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
citation:
ama: 'Freunberger SA. Batteries: Charging ahead rationally. Nature Energy.
2016;1(6). doi:10.1038/nenergy.2016.74'
apa: 'Freunberger, S. A. (2016). Batteries: Charging ahead rationally. Nature
Energy. Springer Nature. https://doi.org/10.1038/nenergy.2016.74'
chicago: 'Freunberger, Stefan Alexander. “Batteries: Charging Ahead Rationally.”
Nature Energy. Springer Nature, 2016. https://doi.org/10.1038/nenergy.2016.74.'
ieee: 'S. A. Freunberger, “Batteries: Charging ahead rationally,” Nature Energy,
vol. 1, no. 6. Springer Nature, 2016.'
ista: 'Freunberger SA. 2016. Batteries: Charging ahead rationally. Nature Energy.
1(6), 16074.'
mla: 'Freunberger, Stefan Alexander. “Batteries: Charging Ahead Rationally.” Nature
Energy, vol. 1, no. 6, 16074, Springer Nature, 2016, doi:10.1038/nenergy.2016.74.'
short: S.A. Freunberger, Nature Energy 1 (2016).
date_created: 2020-01-15T12:16:40Z
date_published: 2016-05-23T00:00:00Z
date_updated: 2021-01-12T08:12:51Z
day: '23'
ddc:
- '540'
- '541'
- '547'
- '546'
doi: 10.1038/nenergy.2016.74
extern: '1'
file:
- access_level: open_access
checksum: d90d675947262f7437b483b251918df2
content_type: application/pdf
creator: sfreunbe
date_created: 2020-06-29T13:41:56Z
date_updated: 2020-07-14T12:47:55Z
file_id: '8047'
file_name: N&V Freunberger final.pdf
file_size: 197375
relation: main_file
file_date_updated: 2020-07-14T12:47:55Z
has_accepted_license: '1'
intvolume: ' 1'
issue: '6'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
publication: Nature Energy
publication_identifier:
issn:
- 2058-7546
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: 'Batteries: Charging ahead rationally'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2016'
...
---
_id: '7298'
abstract:
- lang: eng
text: Lithium-ion batteries are in widespread use in electric vehicles and hybrid
vehicles. Besides features like energy density, cost, lifetime, and recyclability
the safety of a battery system is of prime importance. The separator material
impacts all these properties and requires therefore an informed selection. The
interplay between the mechanical and electrochemical properties as key selection
criteria is investigated. Mechanical properties were investigated using tensile
and puncture penetration tests at abuse relevant conditions. To investigate the
electrochemical performance in terms of effective conductivity a method based
on impedance spectroscopy was introduced. This methodology is applied to evaluate
ten commercial separators which allows for a trade-off analysis of mechanical
versus electrochemical performance. Based on the results, and in combination with
other factors, this offers an effective approach to select suitable separators
for automotive applications.
article_processing_charge: No
article_type: original
author:
- first_name: Martin
full_name: Plaimer, Martin
last_name: Plaimer
- first_name: Christoph
full_name: Breitfuß, Christoph
last_name: Breitfuß
- first_name: Wolfgang
full_name: Sinz, Wolfgang
last_name: Sinz
- first_name: Simon F.
full_name: Heindl, Simon F.
last_name: Heindl
- first_name: Christian
full_name: Ellersdorfer, Christian
last_name: Ellersdorfer
- first_name: Hermann
full_name: Steffan, Hermann
last_name: Steffan
- first_name: Martin
full_name: Wilkening, Martin
last_name: Wilkening
- first_name: Volker
full_name: Hennige, Volker
last_name: Hennige
- first_name: Reinhard
full_name: Tatschl, Reinhard
last_name: Tatschl
- first_name: Alexander
full_name: Geier, Alexander
last_name: Geier
- first_name: Christian
full_name: Schramm, Christian
last_name: Schramm
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
citation:
ama: 'Plaimer M, Breitfuß C, Sinz W, et al. Evaluating the trade-off between mechanical
and electrochemical performance of separators for lithium-ion batteries: Methodology
and application. Journal of Power Sources. 2016;306(2):702-710. doi:10.1016/j.jpowsour.2015.12.047'
apa: 'Plaimer, M., Breitfuß, C., Sinz, W., Heindl, S. F., Ellersdorfer, C., Steffan,
H., … Freunberger, S. A. (2016). Evaluating the trade-off between mechanical and
electrochemical performance of separators for lithium-ion batteries: Methodology
and application. Journal of Power Sources. Elsevier. https://doi.org/10.1016/j.jpowsour.2015.12.047'
chicago: 'Plaimer, Martin, Christoph Breitfuß, Wolfgang Sinz, Simon F. Heindl, Christian
Ellersdorfer, Hermann Steffan, Martin Wilkening, et al. “Evaluating the Trade-off
between Mechanical and Electrochemical Performance of Separators for Lithium-Ion
Batteries: Methodology and Application.” Journal of Power Sources. Elsevier,
2016. https://doi.org/10.1016/j.jpowsour.2015.12.047.'
ieee: 'M. Plaimer et al., “Evaluating the trade-off between mechanical and
electrochemical performance of separators for lithium-ion batteries: Methodology
and application,” Journal of Power Sources, vol. 306, no. 2. Elsevier,
pp. 702–710, 2016.'
ista: 'Plaimer M, Breitfuß C, Sinz W, Heindl SF, Ellersdorfer C, Steffan H, Wilkening
M, Hennige V, Tatschl R, Geier A, Schramm C, Freunberger SA. 2016. Evaluating
the trade-off between mechanical and electrochemical performance of separators
for lithium-ion batteries: Methodology and application. Journal of Power Sources.
306(2), 702–710.'
mla: 'Plaimer, Martin, et al. “Evaluating the Trade-off between Mechanical and Electrochemical
Performance of Separators for Lithium-Ion Batteries: Methodology and Application.”
Journal of Power Sources, vol. 306, no. 2, Elsevier, 2016, pp. 702–10,
doi:10.1016/j.jpowsour.2015.12.047.'
short: M. Plaimer, C. Breitfuß, W. Sinz, S.F. Heindl, C. Ellersdorfer, H. Steffan,
M. Wilkening, V. Hennige, R. Tatschl, A. Geier, C. Schramm, S.A. Freunberger,
Journal of Power Sources 306 (2016) 702–710.
date_created: 2020-01-15T12:16:51Z
date_published: 2016-02-29T00:00:00Z
date_updated: 2021-01-12T08:12:51Z
day: '29'
doi: 10.1016/j.jpowsour.2015.12.047
extern: '1'
intvolume: ' 306'
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
page: 702-710
publication: Journal of Power Sources
publication_identifier:
issn:
- 0378-7753
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: 'Evaluating the trade-off between mechanical and electrochemical performance
of separators for lithium-ion batteries: Methodology and application'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 306
year: '2016'
...
---
_id: '7599'
abstract:
- lang: eng
text: Normal leaf margin development is important for leaf morphogenesis and contributes
to diverse leaf shapes in higher plants. We here show the crucial roles of an
atypical type II phosphatidylinositol 4-kinase, PI4Kγ5, in Arabidopsis leaf margin
development. PI4Kγ5 presents a dynamics expression pattern along with leaf development
and a T-DNA mutant lacking PI4Kγ5, pi4kγ5–1, presents serrated leaves, which is
resulted from the accelerated cell division and increased auxin concentration
at serration tips. Studies revealed that PI4Kγ5 interacts with and phosphorylates
a membrane-bound NAC transcription factor, ANAC078. Previous studies demonstrated
that membrane-bound transcription factors regulate gene transcription by undergoing
proteolytic process to translocate into nucleus, and ANAC078 undergoes proteolysis
by cleaving off the transmembrane region and carboxyl terminal. Western blot analysis
indeed showed that ANAC078 deleting of carboxyl terminal is significantly reduced
in pi4kγ5–1, indicating that PI4Kγ5 is important for the cleavage of ANAC078.
This is consistent with the subcellular localization observation showing that
fluorescence by GFP-ANAC078 is detected at plasma membrane but not nucleus in
pi4kγ5–1 mutant and that expression of ANAC078 deleting of carboxyl terminal,
driven by PI4Kγ5 promoter, could rescue the leaf serration defects of pi4kγ5–1.
Further analysis showed that ANAC078 suppresses the auxin synthesis by directly
binding and regulating the expression of auxin synthesis-related genes. These
results indicate that PI4Kγ5 interacts with ANAC078 to negatively regulate auxin
synthesis and hence influences cell proliferation and leaf development, providing
informative clues for the regulation of in situ auxin synthesis and cell division,
as well as the cleavage and functional mechanism of membrane-bound transcription
factors.
article_number: e1006252
article_processing_charge: No
article_type: original
author:
- first_name: Yong
full_name: Tang, Yong
last_name: Tang
- first_name: Chun-Yan
full_name: Zhao, Chun-Yan
last_name: Zhao
- first_name: Shutang
full_name: Tan, Shutang
id: 2DE75584-F248-11E8-B48F-1D18A9856A87
last_name: Tan
orcid: 0000-0002-0471-8285
- first_name: Hong-Wei
full_name: Xue, Hong-Wei
last_name: Xue
citation:
ama: Tang Y, Zhao C-Y, Tan S, Xue H-W. Arabidopsis type II phosphatidylinositol
4-kinase PI4Kγ5 regulates auxin biosynthesis and leaf margin development through
interacting with membrane-bound transcription factor ANAC078. PLOS Genetics.
2016;12(8). doi:10.1371/journal.pgen.1006252
apa: Tang, Y., Zhao, C.-Y., Tan, S., & Xue, H.-W. (2016). Arabidopsis type II
phosphatidylinositol 4-kinase PI4Kγ5 regulates auxin biosynthesis and leaf margin
development through interacting with membrane-bound transcription factor ANAC078.
PLOS Genetics. Public Library of Science. https://doi.org/10.1371/journal.pgen.1006252
chicago: Tang, Yong, Chun-Yan Zhao, Shutang Tan, and Hong-Wei Xue. “Arabidopsis
Type II Phosphatidylinositol 4-Kinase PI4Kγ5 Regulates Auxin Biosynthesis and
Leaf Margin Development through Interacting with Membrane-Bound Transcription
Factor ANAC078.” PLOS Genetics. Public Library of Science, 2016. https://doi.org/10.1371/journal.pgen.1006252.
ieee: Y. Tang, C.-Y. Zhao, S. Tan, and H.-W. Xue, “Arabidopsis type II phosphatidylinositol
4-kinase PI4Kγ5 regulates auxin biosynthesis and leaf margin development through
interacting with membrane-bound transcription factor ANAC078,” PLOS Genetics,
vol. 12, no. 8. Public Library of Science, 2016.
ista: Tang Y, Zhao C-Y, Tan S, Xue H-W. 2016. Arabidopsis type II phosphatidylinositol
4-kinase PI4Kγ5 regulates auxin biosynthesis and leaf margin development through
interacting with membrane-bound transcription factor ANAC078. PLOS Genetics. 12(8),
e1006252.
mla: Tang, Yong, et al. “Arabidopsis Type II Phosphatidylinositol 4-Kinase PI4Kγ5
Regulates Auxin Biosynthesis and Leaf Margin Development through Interacting with
Membrane-Bound Transcription Factor ANAC078.” PLOS Genetics, vol. 12, no.
8, e1006252, Public Library of Science, 2016, doi:10.1371/journal.pgen.1006252.
short: Y. Tang, C.-Y. Zhao, S. Tan, H.-W. Xue, PLOS Genetics 12 (2016).
date_created: 2020-03-21T16:08:33Z
date_published: 2016-08-16T00:00:00Z
date_updated: 2021-01-12T08:14:25Z
day: '16'
ddc:
- '580'
doi: 10.1371/journal.pgen.1006252
extern: '1'
file:
- access_level: open_access
checksum: ff0ab9a6bed11cda800a6e59820866a0
content_type: application/pdf
creator: dernst
date_created: 2020-03-23T12:15:31Z
date_updated: 2020-07-14T12:48:01Z
file_id: '7612'
file_name: 2016_PlosGenetics_Tang.PDF
file_size: 3266119
relation: main_file
file_date_updated: 2020-07-14T12:48:01Z
has_accepted_license: '1'
intvolume: ' 12'
issue: '8'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
publication: PLOS Genetics
publication_identifier:
issn:
- 1553-7404
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
status: public
title: Arabidopsis type II phosphatidylinositol 4-kinase PI4Kγ5 regulates auxin biosynthesis
and leaf margin development through interacting with membrane-bound transcription
factor ANAC078
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2016'
...
---
_id: '983'
abstract:
- lang: eng
text: The half-filled Landau level is expected to be approximately particle-hole
symmetric, which requires an extension of the Halperin-Lee-Read (HLR) theory of
the compressible state observed at this filling. Recent work indicates that, when
particle-hole symmetry is preserved, the composite fermions experience a quantized
π-Berry phase upon winding around the composite Fermi surface, analogous to Dirac
fermions at the surface of a 3D topological insulator. In contrast, the effective
low-energy theory of the composite fermion liquid originally proposed by HLR lacks
particle-hole symmetry and has vanishing Berry phase. In this paper, we explain
how thermoelectric transport measurements can be used to test the Dirac nature
of the composite fermions by quantitatively extracting this Berry phase. First,
we point out that longitudinal thermopower (Seebeck effect) is nonvanishing because
of the unusual nature of particle-hole symmetry in this context and is not sensitive
to the Berry phase. In contrast, we find that off-diagonal thermopower (Nernst
effect) is directly related to the topological structure of the composite Fermi
surface, vanishing for zero Berry phase and taking its maximal value for π Berry
phase. In contrast, in purely electrical transport signatures, the Berry phase
contributions appear as small corrections to a large background signal, making
the Nernst effect a promising diagnostic of the Dirac nature of composite fermions.
acknowledgement: We thank B. I. Halperin, N. Cooper, C. Wang, J. Alicea, and M. Zaletel
for insightful conversations. A. C. P. and M. S. were supported by the Gordon and
Betty Moore Foundation’s EPiQS Initiative through Grant No. GBMF4307. A. V. was
supported by a Simons Investigator grant.
author:
- first_name: Andrew
full_name: Potter, Andrew C
last_name: Potter
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Ashvin
full_name: Vishwanath, Ashvin K
last_name: Vishwanath
citation:
ama: Potter A, Serbyn M, Vishwanath A. Thermoelectric transport signatures of Dirac
composite fermions in the half-filled Landau level. Physical Review X.
2016;6(3). doi:10.1103/PhysRevX.6.031026
apa: Potter, A., Serbyn, M., & Vishwanath, A. (2016). Thermoelectric transport
signatures of Dirac composite fermions in the half-filled Landau level. Physical
Review X. American Physical Society. https://doi.org/10.1103/PhysRevX.6.031026
chicago: Potter, Andrew, Maksym Serbyn, and Ashvin Vishwanath. “Thermoelectric Transport
Signatures of Dirac Composite Fermions in the Half-Filled Landau Level.” Physical
Review X. American Physical Society, 2016. https://doi.org/10.1103/PhysRevX.6.031026.
ieee: A. Potter, M. Serbyn, and A. Vishwanath, “Thermoelectric transport signatures
of Dirac composite fermions in the half-filled Landau level,” Physical Review
X, vol. 6, no. 3. American Physical Society, 2016.
ista: Potter A, Serbyn M, Vishwanath A. 2016. Thermoelectric transport signatures
of Dirac composite fermions in the half-filled Landau level. Physical Review X.
6(3).
mla: Potter, Andrew, et al. “Thermoelectric Transport Signatures of Dirac Composite
Fermions in the Half-Filled Landau Level.” Physical Review X, vol. 6, no.
3, American Physical Society, 2016, doi:10.1103/PhysRevX.6.031026.
short: A. Potter, M. Serbyn, A. Vishwanath, Physical Review X 6 (2016).
date_created: 2018-12-11T11:49:32Z
date_published: 2016-01-01T00:00:00Z
date_updated: 2021-01-12T08:22:25Z
day: '01'
doi: 10.1103/PhysRevX.6.031026
extern: 1
intvolume: ' 6'
issue: '3'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1512.06852
month: '01'
oa: 1
publication: Physical Review X
publication_status: published
publisher: American Physical Society
publist_id: '6417'
quality_controlled: 0
status: public
title: Thermoelectric transport signatures of Dirac composite fermions in the half-filled
Landau level
type: journal_article
volume: 6
year: '2016'
...
---
_id: '984'
abstract:
- lang: eng
text: The entanglement spectrum of the reduced density matrix contains information
beyond the von Neumann entropy and provides unique insights into exotic orders
or critical behavior of quantum systems. Here, we show that strongly disordered
systems in the many-body localized phase have power-law entanglement spectra,
arising from the presence of extensively many local integrals of motion. The power-law
entanglement spectrum distinguishes many-body localized systems from ergodic systems,
as well as from ground states of gapped integrable models or free systems in the
vicinity of scale-invariant critical points. We confirm our results using large-scale
exact diagonalization. In addition, we develop a matrix-product state algorithm
which allows us to access the eigenstates of large systems close to the localization
transition, and discuss general implications of our results for variational studies
of highly excited eigenstates in many-body localized systems.
acknowledgement: We thank M. Stoudenmire and C. Turner for useful discussions. M.
S. was supported by Gordon and Betty Moore Foundation's EPiQS Initiative through
Grant No. GBMF4307. This research was supported in part by the National Science
Foundation under Grant No. NSF PHY11-25915, and by the Swiss National Science Foundation
and Alfred Sloan Foundation (D. A.). This work made use of the facilities of N8
HPC Centre of Excellence, provided and funded by the N8 consortium and EPSRC (Grant
No. EP/K000225/1). The Centre is coordinated by the Universities of Leeds and Manchester.
author:
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Alexios
full_name: Alexios Michailidis
id: 36EBAD38-F248-11E8-B48F-1D18A9856A87
last_name: Michailidis
- first_name: Dmitry
full_name: Abanin, Dmitry A
last_name: Abanin
- first_name: Zlatko
full_name: Papić, Zlatko
last_name: Papić
citation:
ama: Serbyn M, Michailidis A, Abanin D, Papić Z. Power-law entanglement spectrum
in many-body localized phases. Physical Review Letters. 2016;117(16). doi:10.1103/PhysRevLett.117.160601
apa: Serbyn, M., Michailidis, A., Abanin, D., & Papić, Z. (2016). Power-law
entanglement spectrum in many-body localized phases. Physical Review Letters.
American Physical Society. https://doi.org/10.1103/PhysRevLett.117.160601
chicago: Serbyn, Maksym, Alexios Michailidis, Dmitry Abanin, and Zlatko Papić. “Power-Law
Entanglement Spectrum in Many-Body Localized Phases.” Physical Review Letters.
American Physical Society, 2016. https://doi.org/10.1103/PhysRevLett.117.160601.
ieee: M. Serbyn, A. Michailidis, D. Abanin, and Z. Papić, “Power-law entanglement
spectrum in many-body localized phases,” Physical Review Letters, vol.
117, no. 16. American Physical Society, 2016.
ista: Serbyn M, Michailidis A, Abanin D, Papić Z. 2016. Power-law entanglement spectrum
in many-body localized phases. Physical Review Letters. 117(16).
mla: Serbyn, Maksym, et al. “Power-Law Entanglement Spectrum in Many-Body Localized
Phases.” Physical Review Letters, vol. 117, no. 16, American Physical Society,
2016, doi:10.1103/PhysRevLett.117.160601.
short: M. Serbyn, A. Michailidis, D. Abanin, Z. Papić, Physical Review Letters 117
(2016).
date_created: 2018-12-11T11:49:32Z
date_published: 2016-10-16T00:00:00Z
date_updated: 2021-01-12T08:22:25Z
day: '16'
doi: 10.1103/PhysRevLett.117.160601
extern: 1
intvolume: ' 117'
issue: '16'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1605.05737
month: '10'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '6414'
quality_controlled: 0
status: public
title: Power-law entanglement spectrum in many-body localized phases
type: journal_article
volume: 117
year: '2016'
...
---
_id: '985'
abstract:
- lang: eng
text: We report on magnetotransport studies of dual-gated, Bernal-stacked trilayer
graphene (TLG) encapsulated in boron nitride crystals. We observe a quantum Hall
effect staircase which indicates a complete lifting of the 12-fold degeneracy
of the zeroth Landau level. As a function of perpendicular electric field, our
data exhibit a sequence of phase transitions between all integer quantum Hall
states in the filling factor interval -8<ν<0. We develop a theoretical model
and argue that, in contrast to monolayer and bilayer graphene, the observed Landau
level splittings and quantum Hall phase transitions can be understood within a
single-particle picture, but imply the presence of a charge density imbalance
between the inner and outer layers of TLG, even at charge neutrality and zero
transverse electric field. Our results indicate the importance of a previously
unaccounted band structure parameter which, together with a more accurate estimate
of the other tight-binding parameters, results in a significantly improved determination
of the electronic and Landau level structure of TLG.
acknowledgement: This work has been primarily supported by the National Science Foundation
(DMR-1405221) for device fabrication and transport, and partly by ONR Young Investigator
Award N00014-13-1-0610 for data analysis.
author:
- first_name: Leonardo
full_name: Campos, Leonardo C
last_name: Campos
- first_name: Thiti
full_name: Taychatanapat, Thiti
last_name: Taychatanapat
- first_name: Maksym
full_name: Maksym Serbyn
id: 47809E7E-F248-11E8-B48F-1D18A9856A87
last_name: Serbyn
orcid: 0000-0002-2399-5827
- first_name: Kawin
full_name: Surakitbovorn, Kawin N
last_name: Surakitbovorn
- first_name: Kenji
full_name: Watanabe, Kenji
last_name: Watanabe
- first_name: Takashi
full_name: Taniguchi, Takashi
last_name: Taniguchi
- first_name: Dmitry
full_name: Abanin, Dmitry A
last_name: Abanin
- first_name: Pablo
full_name: Jarillo-Herrero, Pablo
last_name: Jarillo Herrero
citation:
ama: Campos L, Taychatanapat T, Serbyn M, et al. Landau Level Splittings, Phase
Transitions, and Nonuniform Charge Distribution in Trilayer Graphene. Physical
Review Letters. 2016;117(6). doi:10.1103/PhysRevLett.117.066601
apa: Campos, L., Taychatanapat, T., Serbyn, M., Surakitbovorn, K., Watanabe, K.,
Taniguchi, T., … Jarillo Herrero, P. (2016). Landau Level Splittings, Phase Transitions,
and Nonuniform Charge Distribution in Trilayer Graphene. Physical Review Letters.
American Physical Society. https://doi.org/10.1103/PhysRevLett.117.066601
chicago: Campos, Leonardo, Thiti Taychatanapat, Maksym Serbyn, Kawin Surakitbovorn,
Kenji Watanabe, Takashi Taniguchi, Dmitry Abanin, and Pablo Jarillo Herrero. “Landau
Level Splittings, Phase Transitions, and Nonuniform Charge Distribution in Trilayer
Graphene.” Physical Review Letters. American Physical Society, 2016. https://doi.org/10.1103/PhysRevLett.117.066601.
ieee: L. Campos et al., “Landau Level Splittings, Phase Transitions, and
Nonuniform Charge Distribution in Trilayer Graphene,” Physical Review Letters,
vol. 117, no. 6. American Physical Society, 2016.
ista: Campos L, Taychatanapat T, Serbyn M, Surakitbovorn K, Watanabe K, Taniguchi
T, Abanin D, Jarillo Herrero P. 2016. Landau Level Splittings, Phase Transitions,
and Nonuniform Charge Distribution in Trilayer Graphene. Physical Review Letters.
117(6).
mla: Campos, Leonardo, et al. “Landau Level Splittings, Phase Transitions, and Nonuniform
Charge Distribution in Trilayer Graphene.” Physical Review Letters, vol.
117, no. 6, American Physical Society, 2016, doi:10.1103/PhysRevLett.117.066601.
short: L. Campos, T. Taychatanapat, M. Serbyn, K. Surakitbovorn, K. Watanabe, T.
Taniguchi, D. Abanin, P. Jarillo Herrero, Physical Review Letters 117 (2016).
date_created: 2018-12-11T11:49:33Z
date_published: 2016-04-01T00:00:00Z
date_updated: 2021-01-12T08:22:26Z
day: '01'
doi: 10.1103/PhysRevLett.117.066601
extern: 1
intvolume: ' 117'
issue: '6'
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1607.00784
month: '04'
oa: 1
publication: Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '6415'
quality_controlled: 0
status: public
title: Landau Level Splittings, Phase Transitions, and Nonuniform Charge Distribution
in Trilayer Graphene
type: journal_article
volume: 117
year: '2016'
...