Entanglement and Nonunitary Evolution
高能物理 - 理论
2010-10-27 v2 统计力学
广义相对论与量子宇宙学
量子物理
摘要
We consider a collapsing relativistic spherical shell for a free quantum field. Once the center of the wavefunction of the shell passes a certain radius R, the degrees of freedom inside R are traced over. We show that an observer outside this region will determine that the evolution of the system is nonunitary. We argue that this phenomenon is generic to entangled systems, and discuss a possible relation to black hole physics.
引用
@article{arxiv.hep-th/0609075,
title = {Entanglement and Nonunitary Evolution},
author = {Ram Brustein and Martin B. Einhorn and Amos Yarom},
journal= {arXiv preprint arXiv:hep-th/0609075},
year = {2010}
}
备注
14 pages, 1 figure; Added a clarification regarding the relation with black hole physics