Quantum Heat Engines Using Superconducting Quantum Circuits

Details Quantum Heat Engines Using Superconducting Quantum Circuits Quantum Heat Engines Using Superconducting Quantum Circuits

2005-12-08

arxiv.org/abs/quant-ph/0512063v2

Phys. Rev. Lett. 97, 180402 (2006)

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.97.180402

We propose a quantum analog of the internal combustion engine used in most cars. Specifically, we study how to implement the Otto-type quantum heat engine (QHE) with the assistance of a Maxwell's demon. Three steps are required: thermalization, quantum measurement, and quantum feedback controlled by the Maxwell demon. We derive the positive-work condition of this composite QHE. Our QHE can be constructed using superconducting quantum circuits. We explicitly demonstrate the essential role of the demon in this macroscopic QHE.

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