晶格上玻色超流体的动能量子相变
其他凝聚态物理
2009-01-28 v2
摘要
众所周知，量子涨落在晶格上的稠密玻色系统基态中由排斥势能驱动，诱导从超流体到莫特绝缘体的宏观相变。我们发现了一种从均匀到非均匀玻色-凝聚态的量子相变，它在稀疏玻色超流体中受动能色散强烈影响甚至由其驱动，这为超流体态提供了清晰的识别。
引用
@article{arxiv.0812.1977,
title = {Kinetic quantum phase transition in bosonic superfluids on a lattice},
author = {A. S. Alexandrov and I. O. Thomas},
journal= {arXiv preprint arXiv:0812.1977},
year = {2009}
}
备注
4 pages, 3 figures. Submitted to Physical Review Letters Revised version has additional results and a clarification regarding the applicability of the values of the hopping parameters