Abstract
It is shown that any local quantum field theory admits thermodynamical equilibrium states (KMS-states) for all positive temperatures provided it satisfies a “nuclearity condition,” proposed by Wichmann and one of the authors, which restricts the admissible number of local degrees of freedom.
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Communicated by H. Araki
Dedicated to E. H. Wichmann on the occasion of his 60th birthday
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Buchholz, D., Junglas, P. On the existence of equilibrium states in local quantum field theory. Commun.Math. Phys. 121, 255–270 (1989). https://doi.org/10.1007/BF01217805
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DOI: https://doi.org/10.1007/BF01217805