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The Klein-Gordon equation on curved spacetimes and its propagators

Jan Derezinski (Warsaw University)
Onsdag, 15 februar, 2017, at 16:15-17:00, in Aud. D1 (1531-113)
 The Klein-Gordon equation has several natural Green's functions,
often called propagators. The so-called Feynman propagator, used in quantum field theory, has a clear definition on static spacetimes. I will discuss, partly on a heuristic level, its possible generalizations to the non-static case. I will also describe a curious open problem about the self-adjointness of the Klein-Gordon operator.
Kontaktperson: Erik Skibsted