Speaker
Sohei Tsukahara
Description
We investigate the catalytic effect on the decay of a metastable vacuum in type IIB string theory. The decay bubble forms a bound state with an impurity, acting as a catalyst due to the non-linear DBI action. The vacuum's lifetime is calculated beyond the WKB approximation, and it satisfies the Trans-Planckian Censorship Conjecture (TCC) if the string scale is sufficiently smaller than the Planck scale.
