Quantum Szilard Engine
Quantum Physics
2011-02-23 v2
Abstract
The Szilard engine (SZE) is the quintessence of Maxwell's demon, which can extract the work from a heat bath by utilizing information. We present the first complete quantum analysis of the SZE, and derive an analytic expression of the quantum-mechanical work performed by a quantum SZE containing an arbitrary number of molecules, where it is crucial to regard the process of insertion or removal of a wall as a legitimate thermodynamic process. We find that more (less) work can be extracted from the bosonic (fermionic) SZE due to the indistinguishability of identical particles.
Cite
@article{arxiv.1006.1471,
title = {Quantum Szilard Engine},
author = {Sang Wook Kim and Takahiro Sagawa and Simone De Liberato and Masahito Ueda},
journal= {arXiv preprint arXiv:1006.1471},
year = {2011}
}
Comments
4 pages, 3 figures + supplementary information