Principal › Biblio

From conformal to volume-law for the entanglement entropy in exponentially deformed critical spin 1/2 chains

Submitted on: Dom, 13/07/2014 - 00:15 — ramirez
Preprint info
IFT Number: 
IFT-UAM/CSIC-14-066
Arxiv URL: 
http://arxiv.org/abs/1407.3456
From conformal to volume-law for the entanglement entropy in exponentially deformed critical spin 1/2 chains, Giovanni Ramírez; Javier Rodríguez-Laguna; Germán Sierra , Volume 2014, p.P10004, (2014)

An exponential deformation of 1D critical Hamiltonians gives rise to ground states whose entanglement entropy satisfies a volume law. This effect is exemplified in the XX and Heisenberg models. In the XX case we characterize the crossover between the critical and the maximally entangled ground state in terms of the entanglement entropy and the entanglement spectrum.

ISI Journal: 
Non-ISI or not yet published