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.
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.