相对论量子场论中的局域热平衡态
Local Thermal Equilibrium States in Relativistic Quantum Field Theory
摘要：
众所周知，量子统计力学和量子场论中的热平衡态可以通过所谓的Kubo-Martin-Schwinger（KMS）条件以数学上严格的方式来描述，该KMS条件基于关联函数的某些解析性和周期性。另一方面，对只具有局部热性质的非平衡态的表征仍然构成量子场论的挑战。我们讨论了最近提出的一个广义KMS条件的特征，这样的国家。将该建议与D.布赫霍尔茨岛大岛和H.-讨论了用Roos方法刻画量子场论中的局域热平衡态。
英文摘要：
It is well-known that thermal equilibrium states in quantum statistical mechanics and quantum field theory can be described in a mathematically rigorous manner by means of the so-called Kubo-Martin-Schwinger (KMS) condition, which is based on certain analyticity and periodicity properties of correlation functions. On the other hand, the characterization of non-equilibrium states which only locally have thermal properties still constitutes a challenge in quantum field theory. We discuss a recent proposal for characterization of such states by a generalized KMS condition. The connection of this proposal to a proposal by D. Buchholz, I. Ojima and H.-J. Roos for characterizing local thermal equilibrium states in quantum field theory is discussed.
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