Speaker: Prof. Takeo Moroi (Tokyo U.)
Talk title: On the Metastability of Quantum Fields in Thermal Bath
Time: 2024/10/28 (Mon.) 12:30 
Place: R517, New Physics Building

Abstract:
I discuss the metastability of scalar fields in quantum field theories
at finite temperature. Particularly, I focus on a detailed
understanding of the bounce, which is a field configuration dominating
the path integral describing the metastability. I first review how the
transition in thermal bath is formulated following the argument of
Affleck (1980).  Then, I briefly explain our numerical procedure of
calculating the bounce in thermal bath. The procedure is utilized to
calculate the bounce in thermal bath in several cases; properties of
the bounce are also discussed.