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Trapped Ion Quantum Computing Quantum Thermodynamics

When is a quantum heat engine quantum?

arXiv

Authors: Alexander Friedenberger, Eric Lutz

Year

2015

Paper ID

27757

Status

Preprint

Abstract Read

~2 min

Abstract Words

Citations

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Abstract

Quantum thermodynamics studies quantum effects in thermal machines. But when is a heat engine, which cyclically interacts with external reservoirs that unavoidably destroy its quantum coherence, really quantum? We here use the Leggett-Garg inequality to assess the nonclassical properties of a single two-level Otto engine. We provide the complete phase diagram characterizing the quantumness of the engine as a function of its parameters and identify three distinct phases. We further derive an explicit expression for the transition temperature.

Why This Paper Matters

This paper contributes to the Quantum Thermodynamics research area in the Quantum Articles archive.
It adds a 2015 reference point for readers tracking recent quantum research.
Quantum thermodynamics studies quantum effects in thermal machines.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1508.04128 [2] arXiv https://arxiv.org/abs/1508.04128 [3] Publisher https://arxiv.org/abs/1508.04128

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