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Open Quantum Systems Decoherence Quantum Thermodynamics

Perturbative treatment for stationary state of local master equation

arXiv
Authors: Jian-Ying Du, Fu-Lin Zhang

Year

2017

Paper ID

7546

Status

Preprint

Abstract Read

~2 min

Abstract Words

102

Citations

N/A

Abstract

The local approach to construct master equation for a composite open system with a weak internal coupling is simple and seems reasonable. However, it is thermodynamic consistent only when the subsystems are resonantly coupled. Efforts are being made to understand the inconsistency and test the validity of the local master equation. We present a perturbative method to solve the steady-state solutions of linear local master equations, which are demonstrated by two simple models. The solving process shows the stationary state as the result of competition between incoherent operations and the unitary creating quantum coherence, and consequently relate quantum coherence with thermodynamic consistency.

Why This Paper Matters

  • This paper contributes to the Quantum Thermodynamics research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • The local approach to construct master equation for a composite open system with a weak internal coupling is simple and seems reasonable.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1709.03681 [2] arXiv https://arxiv.org/abs/1709.03681 [3] Publisher https://arxiv.org/abs/1709.03681

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