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Open Quantum Systems Decoherence

Evolution of physical observables and entropy in laser process studied on the basis of Kraus-form solution of laser's master equation

arXiv
Authors: Jun-Hua Chen, Hong-Yi Fan

Year

2013

Paper ID

32048

Status

Preprint

Abstract Read

~2 min

Abstract Words

108

Citations

N/A

Abstract

Though laser physics began at 1960s, its entropy evolution has not been touched until very recently the Kraus-form solution of laser's master equation is reported (Ann. Phys. 334 (2013)). We study the new physics based on the discovery in this paper. We analyze time evolution of physical observables and quantum optical properties in the laser process with arbitrary initial states, such as the photon number, the second degree of coherence, etc. The evolution of entropy of these states is also studied. Our results well conform with the known behaviour of laser, which confirms that the master equation describes laser suitably, and the Kraus-form operator solution is correct, elegant and useful.

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  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2013 reference point for readers tracking recent quantum research.
  • Though laser physics began at 1960s, its entropy evolution has not been touched until very recently the Kraus-form solution of laser's master equation is reported (Ann.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1311.1551 [2] arXiv https://arxiv.org/abs/1311.1551 [3] Publisher https://arxiv.org/abs/1311.1551

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