Generalized thermo vacuum state derived by the partial trace method
Quantum Physics
2015-05-13 v1
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.
Cite
@article{arxiv.0904.4297,
title = {Generalized thermo vacuum state derived by the partial trace method},
author = {Li-yun Hu and Hong-yi Fan},
journal= {arXiv preprint arXiv:0904.4297},
year = {2015}
}
Comments
5 pages, no figure, revtex4