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Open Quantum Systems Decoherence

Wigner functions of thermo number state, photon subtracted and added thermo vacuum state at finite temperature

arXiv

Authors: Li-yun Hu, Hong-yi Fan

Year

2009

Paper ID

9300

Status

Preprint

Abstract Read

~2 min

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Abstract

Based on Takahashi-Umezawa thermo field dynamics and the order-invariance of Weyl ordered operators under similar transformations, we present a new approach to deriving the exact Wigner functions of thermo number state, photon subtracted and added thermo vacuum state. We find that these Wigner functions are related to the Gaussian-Laguerre type functions of temperature, whose statistical properties are then analysed.

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Based on Takahashi-Umezawa thermo field dynamics and the order-invariance of Weyl ordered operators under similar transformations, we present a new approach to deriving the...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0901.1424 [2] arXiv https://arxiv.org/abs/0901.1424 [3] Publisher https://arxiv.org/abs/0901.1424

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