2022
05/17
OPEN
Date
2022/05/17（Tue）11:00～12:00
Venue
Online (Zoom)
Speaker
Dr. Daiki Ueda (Peking University)
Language
English
URL
Contact
Masashi Aiko / maiko-AT-post.kek.jp
Overview
Relative entropy is a non-negative quantity and depicts a difference between two probability distributions. In this talk, I explain constraints on perturbative corrections to the Euclidean effective action by the relative entropy. I show that the relative entropy can yield the constraints on some effective field theories generated by a class of UV theories with a specific sign of interactions between heavy and light degrees of freedom. For such a class of theories, I show that the interactions increase thermodynamic entropy at fixed energy and charge, which is intimately connected with the extremality relations of black holes exhibiting Weak-Gravity-Conjecture.