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. 2006 Nov 3;97(18):180402.
doi: 10.1103/PhysRevLett.97.180402. Epub 2006 Oct 30.

Maxwell's demon assisted thermodynamic cycle in superconducting quantum circuits

H T Quan  1 , Y D Wang, Yu-xi Liu, C P Sun, Franco Nori
Affiliations

Maxwell's demon assisted thermodynamic cycle in superconducting quantum circuits

H T Quan et al. Phys Rev Lett. .

Abstract

We study a new quantum heat engine (QHE), which is assisted by a Maxwell's demon. The QHE requires three steps: thermalization, quantum measurement, and quantum feedback controlled by the Maxwell demon. We derive the positive-work condition and operation efficiency of this composite QHE. Using controllable superconducting quantum circuits as an example, we show how to construct our QHE. The essential role of the demon is explicitly demonstrated in this macroscopic QHE.

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