Heat due to system-reservoir correlations in thermal equilibrium

Loading...
Thumbnail Image
Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2014
Major/Subject
Mcode
Degree programme
Language
en
Pages
075421/1-6
Series
Physical Review B, Volume 90, Issue 7
Abstract
The heat flow between a quantum system and its reservoir is analyzed when initially both are in a separable thermal state and asymptotically approach a correlated equilibrium. General findings are illustrated for specific systems and various classes of non-Markovian reservoirs relevant for solid state realizations. System-bath correlations are shown to be substantial at low temperatures even in the weak coupling regime. As a consequence, predictions of work and heat for actual experiments obtained within conventional perturbative approaches may often be questionable. Correlations induce characteristic imprints in heat capacities which opens a proposal to measure them in solid state devices.
Description
Keywords
quantum systems, heat flows
Other note
Citation
Ankerhold, Joachim & Pekola, Jukka. 2014. Heat due to system-reservoir correlations in thermal equilibrium. Physical Review B. Volume 90, Issue 7. P. 075421/1-6. ISSN 1098-0121 (printed). DOI: 10.1103/physrevb.90.075421.