Characterizing the width of entanglement
Quantum Physics
2017-02-02 v2
Abstract
We introduce the concept of entanglement width as measure of the spatial distribution of entanglement in multiparticle systems. We develop criteria to detect the width of entanglement using global observables such as energy and magnetic susceptibility. Therefore, the introduced entanglement criteria can be applied to systems where addressing of single particles is not possible. We apply the criteria to different examples such as the J1-J2- Heisenberg model and point out the difference between entanglement depth and entanglement width.
Cite
@article{arxiv.1507.07226,
title = {Characterizing the width of entanglement},
author = {Sabine Wölk and Otfried Gühne},
journal= {arXiv preprint arXiv:1507.07226},
year = {2017}
}
Comments
10 pages, 5 figures, major revision including new examples and criteria for entanglement width