Correlation length and unusual corrections to entanglement entropy

We study analytically the corrections to the leading terms in the Rényi entropy of a massive lattice theory, showing significant deviations from naive expectations. In particular, we show that finite size and finite mass effects give rise to different contributions (with different exponents) and thu...

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Bibliographic Details
Main Authors: Ercolessi, Elisa, Evangelisti, Stefano, Franchini, Fabio, Ravanini, Francesco
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2012
Online Access:http://hdl.handle.net/1721.1/74080