Rescuing a Quantum Phase Transition with Quantum Noise.
Publication
, Journal Article
Zhang, G; Novais, E; Baranger, HU
Published in: Phys Rev Lett
February 3, 2017
We show that placing a quantum system in contact with an environment can enhance non-Fermi-liquid correlations, rather than destroy quantum effects, as is typical. The system consists of two quantum dots in series with two leads; the highly resistive leads couple charge flow through the dots to the electromagnetic environment, the source of quantum noise. While the charge transport inhibits a quantum phase transition, the quantum noise reduces charge transport and restores the transition. We find a non-Fermi-liquid intermediate fixed point for all strengths of the noise. For strong noise, it is similar to the intermediate fixed point of the two-impurity Kondo model.
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Published In
Phys Rev Lett
DOI
EISSN
1079-7114
Publication Date
February 3, 2017
Volume
118
Issue
5
Start / End Page
050402
Location
United States
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences
Citation
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MLA
NLM
Zhang, G., Novais, E., & Baranger, H. U. (2017). Rescuing a Quantum Phase Transition with Quantum Noise. Phys Rev Lett, 118(5), 050402. https://doi.org/10.1103/PhysRevLett.118.050402
Zhang, Gu, E. Novais, and Harold U. Baranger. “Rescuing a Quantum Phase Transition with Quantum Noise.” Phys Rev Lett 118, no. 5 (February 3, 2017): 050402. https://doi.org/10.1103/PhysRevLett.118.050402.
Zhang G, Novais E, Baranger HU. Rescuing a Quantum Phase Transition with Quantum Noise. Phys Rev Lett. 2017 Feb 3;118(5):050402.
Zhang, Gu, et al. “Rescuing a Quantum Phase Transition with Quantum Noise.” Phys Rev Lett, vol. 118, no. 5, Feb. 2017, p. 050402. Pubmed, doi:10.1103/PhysRevLett.118.050402.
Zhang G, Novais E, Baranger HU. Rescuing a Quantum Phase Transition with Quantum Noise. Phys Rev Lett. 2017 Feb 3;118(5):050402.
Published In
Phys Rev Lett
DOI
EISSN
1079-7114
Publication Date
February 3, 2017
Volume
118
Issue
5
Start / End Page
050402
Location
United States
Related Subject Headings
- General Physics
- 51 Physical sciences
- 49 Mathematical sciences
- 40 Engineering
- 09 Engineering
- 02 Physical Sciences
- 01 Mathematical Sciences