Entanglement Energetics at Zero Temperature
介观与纳米尺度物理
2007-05-23 v1 量子物理
摘要
We show how many-body ground state entanglement information may be extracted from sub-system energy measurements at zero temperature. Generically, the larger the measured energy fluctuations are, the larger the entanglement is. Examples are given with the two-state system and the harmonic oscillator. Comparisons made with recent qubit experiments show this type of measurement provides another method to quantify entanglement with the environment.
引用
@article{arxiv.cond-mat/0311647,
title = {Entanglement Energetics at Zero Temperature},
author = {Andrew N. Jordan and Markus Buttiker},
journal= {arXiv preprint arXiv:cond-mat/0311647},
year = {2007}
}
备注
4 pages, 2 figures