Feynman propagator on curved spacetimes

Zapraszamy w piatek 04.10.2019 o godz. 12:15, sala 361 na seminarium.

Seminarium pod tytułem: "Feynman propagator on curved spacetimes" poprowadzi prof. Jan Dereziński, Katedra Metod Matematycznych UW.

Abstract:

Quantum Field Theory on curved spacetimes has some interesting conceptual problems that lead to nontrivial mathematics. There are two approaches: one is global and the other is local. I prefer  the global approach, where the key concept is the Feynman propagator (a distinguished inverse of the Klein-Gordon operator). In the local approach the main role is played by the so-called Hadamard states.