Properties of the thermal two-point functions in curved spacetimes for a self-interacting scalar field
We will present a method for building a consistent AQFT on Schwarzschild spacetime for a thermal system ruled by an interacting and massive scalar field, extending the methods and the results of K. Fredenhagen and F. Lindner valid for the flat case. In particular we will discuss the asymptotic properties of the two-point function of a thermal (KMS) state in order to obtain finite expectation values for the observables of the theory.
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