Thermo Field Dynamics and quantum algebras
نویسندگان
چکیده
The algebraic structure of Thermo Field Dynamics lies in the q-deformation of the algebra of creation and annihilation operators. Doubling of the degrees of freedom, tilde-conjugation rules, and Bogoliubov transformation for bosons and fermions are recognized as algebraic properties of hq(1) and of hq(1|1), respectively. PACS: 03.70.+k, 03.65.F, 11.10.-z
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