The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Quantum Noise as an Entanglement Meter
Open accessAbstract
Transport in a quantum point contact (QPC) can be used to generate many-body entanglement of Fermi seas in the leads. A universal relation is found between the generated entanglement entropy and the fluctuations of electric current, which is valid for any protocol of driving the QPC. This relation offers a basis for direct electric measurement of entanglement entropy. In particular, by utilizing space-time duality of 1D systems, we relate electric noise generated by opening and closing the QPC periodically in time with the seminal S=1/3logL prediction of conformal field theory.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Entanglement Entropy and Quantum Field Theory
Calabrese, P., & Cardy, J. (2004) · arXiv · doi:10.48550/arxiv.hep-th/0405152 · Cited by 3,275
Entanglement in Quantum Critical Phenomena
Vidal, G., Latorre, J. I., Rico, E., & Kitaev, A. (2003) · Physical Review Letters · doi:10.1103/physrevlett.90.227902 · Cited by 2,793
Quantum source of entropy for black holes
Bombelli, L., Koul, R. K., Lee, J., & Sorkin, R. D. (1986) · Physical Review D · doi:10.1103/physrevd.34.373 · Cited by 1,439
General Entanglement Scaling Laws from Time Evolution
Eisert, J., & Osborne, T. J. (2006) · Physical Review Letters · doi:10.1103/physrevlett.97.150404 · Cited by 201
Cited by
Colloquium: Nonequilibrium dynamics of closed interacting quantum systems
Polkovnikov, A., Sengupta, K., Silva, A., & Vengalattore, M. (2011) · Reviews of Modern Physics · doi:10.1103/revmodphys.83.863 · Cited by 2,562
Entanglement entropy and conformal field theory
Calabrese, P., & Cardy, J. (2009) · Journal of Physics A: Mathematical and Theoretical · doi:10.1088/1751-8113/42/50/504005 · Cited by 1,688
“However, there is one recent interesting proposal to measure the entanglement entropy out of equilibrium, in the setup of the local quench we have just described [7, 143, 144].”
BackgroundMethodInfluentialQuantum entanglement in condensed matter systems
Laflorencie, N. (2016) · Physics Reports · doi:10.1016/j.physrep.2016.06.008 · Cited by 765
Entanglement entropy of two disjoint intervals in conformal field theory
Calabrese, P., Cardy, J., & Tonni, E. (2009) · Journal of Statistical Mechanics: Theory and Experiment · doi:10.1088/1742-5468/2009/11/p11001 · Cited by 365
Entanglement entropy of two disjoint intervals in conformal field theory: II
Calabrese, P., Cardy, J., & Tonni, E. (2011) · Journal of Statistical Mechanics: Theory and Experiment · doi:10.1088/1742-5468/2011/01/p01021 · Cited by 323
Metadata
- Authors
- Klich, I., & Levitov, L.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2009-03-09
- Volume
- 102
- Issue
- 10
- Pages
- 100502-100502
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2062804495
- Cited by
- 359
- References
- 4
- FWCI
- 14.68
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Quantum Noise as an Entanglement Meter. https://app.cochat.ai/papers/10.1103/physrevlett.102.100502
- The paper
- Klich, I., & Levitov, L. (2009). Quantum Noise as an Entanglement Meter. Physical Review Letters. https://doi.org/10.1103/physrevlett.102.100502
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
