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Quantum symmetries and thermal field dynamics |
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| Authors: | T Kopf A E Santana F C Khanna |
| Institution: | (1) Theoretical Physics Institute, Avadh Bhatia Phys. Lab., University of Alberta, Edmonton, Alberta, T6G 2J1, Canada;(2) Theoretical Physics Institute, Avadh Bhatia Phys. Lab., University of Alberta, Edmonton, Alberta, T6G 2J1, Canada.;(3) Instituto de Fisica, Universidade Federal da Bahia, Campus de Ondina, 40210-340 Salvador, Bahia, Brazil |
| Abstract: | In Thermal Field Dynamics, thermal states are obtained from restrictions of vacuum states on a doubled field algebra. It is shown that the suitably doubled Fock representations of the Heisenberg algebra do not need to be introduced by hand but can be canonically handed down from deformations of the extended Heisenberg bialgebra. The relationship between quantum symmetries and doublings is discussed. |
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