PIRSA ID: 21110001
Série :
Event Type: Seminar
Domaine(s) scientifique(s) : Quantum Fields and Strings
Date de fin : 2021-11-02
Speaker(s): Adar Sharon Weizmann Institute of Science
We study the Lyapunov exponent in disordered quantum field theories. Generically the Lyapunov exponent can only be computed in isolated CFTs, and little is known about the way in which chaos grows as we deform the theory away from weak coupling. In this talk we describe families of theories in which the disorder coupling is an exactly marginal deformation, allowing us to follow the Lyapunov exponent from weak to strong coupling. We find surprising behaviors in some cases, including a discontinuous transition into chaos. We also describe a new method allowing for computations in nontrivial CFTs deformed by disorder at leading order in 1/N.