Multi-Particle Quantum Szilard Engine with Optimal Cycles Assisted by a Maxwell's Demon
Abstract
We present a complete-quantum description of multi-particle Szilard engine which consists of a working substance and a Maxwell's demon. The demon is modeled as a multi-level quantum system with specific quantum control and the working substance consists of identical particles obeying Bose-Einstein or Fermi-Dirac statistics. In this description, a reversible scheme to erase the demon's memory by a lower temperature heat bath is used. We demonstrate that (1) the quantum control of the demon can be optimized for single-particle Szilard engine so that the efficiency of the demon-assisted thermodynamic cycle could reach the Carnot cycle's efficiency; (2) the low-temperature behavior of the working substance is very sensitive to the quantum statistics of the particles and the insertion position of the partition.
Cite
@article{arxiv.1111.5074,
title = {Multi-Particle Quantum Szilard Engine with Optimal Cycles Assisted by a Maxwell's Demon},
author = {C. Y. Cai and H. Dong and C. P. Sun},
journal= {arXiv preprint arXiv:1111.5074},
year = {2012}
}
Comments
14 pages, 9 figures