Eur. Phys. J. Special Topics 151, 157-165 (2007)
https://doi.org/10.1140/epjst/e2007-00371-8

Quantum thermodynamic Otto machines: A spin-system approach

Institute of Theoretical Physics I, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany

Corresponding authors: Markus.Henrich@itp1.uni-stuttgart.de Florian.Rempp@itp1.uni-stuttgart.de

Abstract

An overview of the realization of an Otto cycle in the quantum regime is given. A detailed description of the involved steps and the efficiency is derived for a quantum machine consisting of a single spin. Within this approach it is possible to understand what happens when the Otto efficiency reaches the Carnot efficiency. The establishment of the Otto cycle in quite a different scenario like that of algorithmic cooling is indicated.