Skip navigation

Please use this identifier to cite or link to this item:
Title: Non-hermitian quantum thermodynamics
Authors: Gardas, Bartłomiej
Deffner, Sebastian
Saxena, Avadh
Keywords: Free-Energy Differences; Mechanics; Symmetry; Hamiltonians; Thermodynamics
Issue Date: 2016
Citation: Scientific Reports" (2016, [22 March], art. no 23408
Abstract: Thermodynamics is the phenomenological theory of heat and work. Here we analyze to what extent quantum thermodynamic relations are immune to the underlying mathematical formulation of quantum mechanics. As a main result, we show that the Jarzynski equality holds true for all non-hermitian quantum systems with real spectrum. This equality expresses the second law of thermodynamics for isothermal processes arbitrarily far from equilibrium. In the quasistatic limit however, the second law leads to the Carnot bound which is fulfilled even if some eigenenergies are complex provided they appear in conjugate pairs. Furthermore, we propose two setups to test our predictions, namely with strongly interacting excitons and photons in a semiconductor microcavity and in the non-hermitian tight-binding model.
DOI: 10.1038/srep23408
ISSN: 2045-2322
Appears in Collections:Artykuły (WNŚiT)

Files in This Item:
File Description SizeFormat 
Gardas_Non-hermitian_quantum_thermodynamics.pdf599,99 kBAdobe PDFView/Open
Show full item record

Uznanie Autorstwa 3.0 Polska Creative Commons License Creative Commons