Analyticity Properties and Thermal Effects for General Quantum Field Theory on deSitter Space-Time

摘要

The authors propose a general framework for quantum field theory on the de Sitterspace-time (i.e. for local field theories whose truncated Wightman functions are not required to vanish). By requiring that the fields satisfy a weak spectral condition, formulated in terms of the analytic continuation properties of their Wightman functions, the authors show that a geodesical observer will detect in the corresponding 'vacuum' a blackbody radiation at temperature T = 1/2(pi)R. The authors also prove the analogues of the PCT, Reeh-Schlieder and Bisognano-Wichmann theorems.