On Normal ordering and Canonical transformations in Thermal Field Theory
M. Blasone, T. S. Evans, D. A. Steer, G. Vitiello
Abstract
We look at a real scalar field in thermal equilibrium in the context of the new normal ordering and field split defined by Evans and Steer. We show that the field split defines a natural canonical transformation, but that this transformation differs from others known in thermal field theory.
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