Seminar series
Date
Fri, 26 Feb 2016
Time
13:00 -
14:00
Location
L3
Speaker
Sonia Paban
Organisation
University of Texas at Austin
The possibility of a landscape of metastable vacua raises the question of what fraction of vacua are truly long lived. Naively any would-be vacuum state has many nearby decay paths, and all possible decays must be suppressed. An interesting model of this phenomena consists of N scalars with a random potential of fourth order. We show that the scaling of the typical minimal bounce action with N is readily understood. We discuss the extension to more realistic landscape models as well as the effects of gravity.