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Thermo Field Dynamics and quantum algebras

E. Celeghini, S. De Martino, S. De Siena, A. Iorio, M. Rasetti, G. Vitiello

hep-tharXiv:hep-th/9801031

Abstract

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.

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