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Generalizations of the thermal Bogoliubov transformation | | P. Elmfors
; H. Umezawa
; | | Date: |
21 Apr 1993 | | Subject: | hep-th | | Abstract: | The thermal Bogoliubov transformation in thermo field dynamics is generalized in two respects. First, a generalization of the $alpha$--degree of freedom to tilde non--conserving representations is considered. Secondly, the usual $2 imes2$ Bogoliubov matrix is extended to a $4 imes4$ matrix including mixing of modes with non--trivial multiparticle correlations. The analysis is carried out for both bosons and fermions. | | Source: | arXiv, hep-th/9304089 | | Services: | Forum | Review | PDF | Favorites | |
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