Scalar field propagators in the microcan
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H Arthur Weldon
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Article
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1989
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Elsevier Science
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English
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The real-time thermal propagator of the canonical ensemble is shown to be the Laplace transform of a propagator which is an ensemble average over states with fixed energy E. This microcanonical propagator is temperature independent. The Boltzmann factor exp( -BE) in the Laplace transform produces th