Universal entanglement spectra in critical spin chains
Strongly Correlated Electrons
2016-08-31 v1
Abstract
We advocate that in critical spin chains, and possibly in a larger class of 1D critical models, a gap in the momentum-space entanglement spectrum separates the universal part of the spectrum, which is determined by the associated conformal field theory, from the non-universal part, which is specific to the model. To this end, we provide affirmative evidence from multicritical spin chains with low energy sectors described by the SU(2) or the SU(3) Wess-Zumino-Witten model.
Keywords
Cite
@article{arxiv.1512.09030,
title = {Universal entanglement spectra in critical spin chains},
author = {Rex Lundgren and Jonathan Blair and Pontus Laurell and Nicolas Regnault and Gregory A. Fiete and Martin Greiter and Ronny Thomale},
journal= {arXiv preprint arXiv:1512.09030},
year = {2016}
}
Comments
5 pages, 5 figures