Seminário do Grupo de Física Teórica

Author: Mohammad Rajabpour (iF-UFF)

Title: Mutual informations in 1+1 dimensional CFT's (quantum critical chains)

Abstract: I will first introduce Shannon entropy and its generalization Renyi entropy for quantum chains. Despite the base dependence of these quantities I will show that one can extract the central charge of the critical chains by introducing the quantities; mutual Shannon entropy and mutual Renyi entropy. I will emphasize on the important role of especial bases, we call them conformal basis, in extracting the central charge of the system.

References:

F. C. Alcaraz, M. A. Rajabpour, Phys. Rev. Lett. 111, 017201 (2013) [ arXiv:1305.1239].

F. C. Alcaraz, M. A. Rajabpour, Phys. Rev. B 90, 075132 (2014)  [arXiv:1405.1074].

F. C. Alcaraz, M. A. Rajabpour, to appear soon.