|Speaker:||Shunji Matsuura (McGill)|
|Title:||Renyi entropy and Entanglement spectrum|
|Date:||Tue, Apr 16, 2013, 13:15 - 14:45|
|Place:||Seminar Room A|
Entanglement is a useful concept in quantum many-body systems introduced from the quantum information theory.
In this talk, I will first explain how the entanglement spectrum, the eigenvalue distribution of the reduced density matrix, of CFT changes as a function of the conformal dimensions of scalar operators in it.
Then I will introduce a generalization of the entanglement entropy by twisting boundary conditions.
Physical meaning of it is to insert charged operators on the entangling surfaces.
I will explain a possible gravitational dual of it.