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arXiv · 0904.4297

Generalized thermo vacuum state derived by the partial trace method

Li-yun Hu·Hong-yi Fan
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Abstract

By virtue of the technique of integration within an ordered product (IWOP) of operators we present a new approach for deriving generalized thermo vacuum state which is simpler in form that the result by using the Umezawa-Takahashi approach, in this way the thermo field dynamics can be developed. Applications of the new state are discussed.

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Li-yun Hu, Hong-yi Fan. 2009-04-28. Generalized thermo vacuum state derived by the partial trace method. https://doi.org/10.1088/0256-307x%2F26%2F9%2F090307

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