English

A Steady State Entanglement Witness

Quantum Physics 2011-02-02 v1 Statistical Mechanics

Abstract

We present a method for entanglement detection in steady state systems using a thermodynamic witness. To illustrate, we consider an example and find that for an XX spin chain, the presence of an energy current increases the region of entanglement detected by the steady state witness. Further, we find that entanglement exists even at a high steady state temperature. We also discuss concurrence in the steady state system and find that the amount of entanglement can be increased by the current.

Keywords

Cite

@article{arxiv.1102.0220,
  title  = {A Steady State Entanglement Witness},
  author = {Jenny Hide},
  journal= {arXiv preprint arXiv:1102.0220},
  year   = {2011}
}

Comments

4 pages, 3 figures

R2 v1 2026-06-21T17:20:05.396Z