超导量子电路中麦克斯韦妖辅助的热力学循环。

Maxwell's demon assisted thermodynamic cycle in superconducting quantum circuits.

作者信息

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

机构信息

Frontier Research System, The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama 351-0198, Japan.

出版信息

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

DOI:10.1103/PhysRevLett.97.180402

PMID:17155519

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.

摘要

我们研究了一种由麦克斯韦妖辅助的新型量子热机（QHE）。该量子热机需要三个步骤：热化、量子测量以及由麦克斯韦妖控制的量子反馈。我们推导了这种复合量子热机的正功条件和运行效率。以可控超导量子电路为例，我们展示了如何构建我们的量子热机。在这种宏观量子热机中明确展示了妖的重要作用。