Quantum thermodynamics with strong system-bath coupling: A mapping approach

Autor:	Xu, You-Yang, Gong, Jiangbin, Liu, Wu-Ming
Rok vydání:	2023
Předmět:	Quantum Physics Condensed Matter - Statistical Mechanics
Druh dokumentu:	Working Paper
Popis:	Quantum thermodynamic quantities, normally formulated with the assumption of weak system-bath coupling (SBC), can often be contested in physical circumstances with strong SBC. This work presents an alternative treatment that enables us to use standard concepts based on weak SBC to tackle with quantum thermodynamics with strong SBC. Specifically, via a physics-motivated mapping between strong and weak SBC, we show that it is possible to identify thermodynamic quantities with arbitrary SBC, including work and heat that shed light on the first law of thermodynamics with strong SBC. Quantum fluctuation theorems, such as the Tasaki-Crooks relation and the Jarzynski equality are also shown to be extendable to strong SBC cases. Our theoretical results are further illustrated with a working example. Comment: 5 pages of main text including 2 figures plus 9 pages of supplementary material
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2304.08268 Zobrazit plný text záznamu View this record from Arxiv