Conformal Blocks and Negativity at Large Central Charge
High Energy Physics - Theory
2015-06-22 v3
Abstract
We consider entanglement negativity for two disjoint intervals in 1+1 dimensional CFT in the limit of large central charge. As the two intervals get close, the leading behavior of negativity is given by the logarithm of the conformal block where a set of approximately null descendants appears in the intermediate channel. We compute this quantity numerically and compare with existing analytic methods which provide perturbative expansion in powers of the cross-ratio.
Cite
@article{arxiv.1407.0324,
title = {Conformal Blocks and Negativity at Large Central Charge},
author = {Manuela Kulaxizi and Andrei Parnachev and Giuseppe Policastro},
journal= {arXiv preprint arXiv:1407.0324},
year = {2015}
}
Comments
harvmac, 30 pages, 2 figures, references added, accepted for publication in JHEP