EUCLIDEAN THERMAL GREEN-FUNCTIONS OF PHOTONS IN GENERALIZED EUCLIDEANRINDLER SPACES FOR ANY FEYNMAN-LIKE GAUGE

The thermal Euclidean Green functions for Photons propagating in the R indler wedge are computed by employing an Euclidean approach within an y covariant Feynman-like gauge. This is done by generalizing a formula which holds in the Minkowskian case. The coincidence of the found (be ta = 2 pi)-Green functions and the corresponding Minkowskian vacuum Gr een functions is discussed in relation to the remaining static gauge a mbiguity already found in previous works. Further generalizations to m ore complicated manifolds are discussed. Ward identities are verified in the general case.