Entanglement Induced Phase Transitions
量子物理
2013-09-13 v2
摘要
Starting from the canonical ensemble over the space of pure quantum states, we obtain an integral representation for the partition function. This is used to calculate the magnetisation of a system of N spin-1/2 particles. The results suggest the existence of a new type of first order phase transition that occurs at zero temperature in the absence of spin-spin interactions. The transition arises as a consequence of quantum entanglement. The effects of internal interactions are analysed and the behaviour of the magnetic susceptibility for a small number of interacting spins is determined.
引用
@article{arxiv.quant-ph/0103157,
title = {Entanglement Induced Phase Transitions},
author = {Dorje C. Brody and Lane P. Hughston and Matthew F. Parry},
journal= {arXiv preprint arXiv:quant-ph/0103157},
year = {2013}
}
备注
4 pages, 2 figures