Stochastic Thermodynamics of a Quantum Dot Coupled to a Finite-Size Reservoir.

Autor: Moreira SV; Department of Physics and NanoLund, Lund University, Box 118, 22100 Lund, Sweden.; School of Physics, Trinity College Dublin, Dublin 2, Ireland., Samuelsson P; Department of Physics and NanoLund, Lund University, Box 118, 22100 Lund, Sweden., Potts PP; Department of Physics and Swiss Nanoscience Institute, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland.
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2023 Dec 01; Vol. 131 (22), pp. 220405.
DOI: 10.1103/PhysRevLett.131.220405
Abstrakt: In nanoscale systems coupled to finite-size reservoirs, the reservoir temperature may fluctuate due to heat exchange between the system and the reservoirs. To date, a stochastic thermodynamic analysis of heat, work, and entropy production in such systems is, however, missing. Here we fill this gap by analyzing a single-level quantum dot tunnel coupled to a finite-size electronic reservoir. The system dynamics is described by a Markovian master equation, depending on the fluctuating temperature of the reservoir. Based on a fluctuation theorem, we identify the appropriate entropy production that results in a thermodynamically consistent statistical description. We illustrate our results by analyzing the work production for a finite-size reservoir Szilard engine.
Databáze: MEDLINE