Department of Physics

Indian Institute Of Technology Madras , Chennai

Connecting Fisher information to bulk entanglement in holography

Speaker : Dr. Debajyoti Sarkar, Albert Einstein Center (AEC) for Fundamental Physics and Institute for Theoretical Physics (ITP), University of Bern.

2018-09-27

Abstract :

In the context of relating AdS/CFT to quantum information theory, we propose a holographic dual of the Fisher information metric for mixed states in the boundary field theory. This amounts to a holographic measure for the distance between two mixed quantum states. For a spherical sub-region, we study various excited states in the boundary and show that this is related to a particularly regularized volume enclosed by the corresponding Ryu-Takayanagi surfaces. We discuss consequences of this connection at order by order in boundary perturbation theory and finally, some ongoing progress along this direction.

Key Speaker Dr. Debajyoti Sarkar, Albert Einstein Center (AEC) for Fundamental Physics and Institute for Theoretical Physics (ITP), University of Bern.
Guests None
Place HSB 203
Start Time 3:00 PM
Finish Time 4:00 PM
External Link None