Probing Genuine Multipartite Entanglement in Large Systems
Quantum Physics
2019-11-13 v1
Abstract
We introduce a new kind of Entanglement Witness which is appropriate for studying genuine multipartite entanglement in large systems. The witness operator has a form that fits naturally to quantum states represented by tensor networks. It opens up novel routes for investigating properties of condensed matter systems, and gives a new perspective to understand many-body quantum correlations. We illustrate the potential of this new operator with a GHZ state, and apply the method to a transverse Ising model with the well-known approach of Matrix Product States and Matrix Product Operators for a hundred spins.
Cite
@article{arxiv.1911.04649,
title = {Probing Genuine Multipartite Entanglement in Large Systems},
author = {Lucas B. Vieira and Diego L. Braga Ferreira and Thiago O. Maciel and Reinaldo O. Vianna},
journal= {arXiv preprint arXiv:1911.04649},
year = {2019}
}
Comments
6 pages, 5 figures