Estimation for Entanglement Negativity of Free Fermions
High Energy Physics - Theory
2016-08-03 v4 Statistical Mechanics
Quantum Physics
Abstract
In this letter we study the negativity of one dimensional free fermions. We derive the general form of the symmetric term in moments of the partial transposed (reduced) density matrix, which is an algebraic function of the end points of the system. Such a path integral turns out to be a convenient tool for making estimations for the negativity.
Keywords
Cite
@article{arxiv.1601.00678,
title = {Estimation for Entanglement Negativity of Free Fermions},
author = {Christopher P. Herzog and Yihong Wang},
journal= {arXiv preprint arXiv:1601.00678},
year = {2016}
}
Comments
18 pages, 2 figures; v2: minor typos corrected,v3: minor revision,v4:minor typos corrected