Jarzynski equality in PT-symmetric quantum mechanics
Abstract
We show that the quantum Jarzynski equality generalizes to PT -symmetric quantum mechanics with unbroken PT -symmetry. In the regime of broken PT -symmetry the Jarzynski equality does not hold as also the CPT -norm is not preserved during the dynamics. These findings are illustrated for an experimentally relevant system – two coupled optical waveguides. It turns out that for these systems the phase transition between the regimes of unbroken and broken PT -symmetry is thermodynamically inhibited as the irreversible work diverges at the critical point.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division and Center for Nonlinear Studies
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1221221
- Alternate Identifier(s):
- OSTI ID: 1181127
- Report Number(s):
- LA-UR-15-20355
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 114; Journal Issue: 15; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Deffner, Sebastian, and Saxena, Avadh. Jarzynski equality in PT-symmetric quantum mechanics. United States: N. p., 2015.
Web. doi:10.1103/PhysRevLett.114.150601.
Deffner, Sebastian, & Saxena, Avadh. Jarzynski equality in PT-symmetric quantum mechanics. United States. https://doi.org/10.1103/PhysRevLett.114.150601
Deffner, Sebastian, and Saxena, Avadh. Mon .
"Jarzynski equality in PT-symmetric quantum mechanics". United States. https://doi.org/10.1103/PhysRevLett.114.150601. https://www.osti.gov/servlets/purl/1221221.
@article{osti_1221221,
title = {Jarzynski equality in PT-symmetric quantum mechanics},
author = {Deffner, Sebastian and Saxena, Avadh},
abstractNote = {We show that the quantum Jarzynski equality generalizes to PT -symmetric quantum mechanics with unbroken PT -symmetry. In the regime of broken PT -symmetry the Jarzynski equality does not hold as also the CPT -norm is not preserved during the dynamics. These findings are illustrated for an experimentally relevant system – two coupled optical waveguides. It turns out that for these systems the phase transition between the regimes of unbroken and broken PT -symmetry is thermodynamically inhibited as the irreversible work diverges at the critical point.},
doi = {10.1103/PhysRevLett.114.150601},
journal = {Physical Review Letters},
number = 15,
volume = 114,
place = {United States},
year = {Mon Apr 13 00:00:00 EDT 2015},
month = {Mon Apr 13 00:00:00 EDT 2015}
}
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