Jarzynski equality in PT-symmetric quantum mechanics

Deffner, Sebastian; Saxena, Avadh

doi:10.1103/PhysRevLett.114.150601

Title: Jarzynski equality in PT-symmetric quantum mechanics

Journal Article · Mon Apr 13 00:00:00 EDT 2015 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.114.150601· OSTI ID:1221221

Deffner, Sebastian ^[1]; Saxena, Avadh ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Theoretical Division and Center for Nonlinear Studies

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.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1221221

Alternate ID(s):: OSTI ID: 1181127

Report Number(s):: LA-UR-15-20355; PRLTAO

Journal Information:: Physical Review Letters, Vol. 114, Issue 15; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 44 works

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