Variational study of hard-core bosons in a two-dimensional optical lattice using projected entangled pair states 论文
2007Physical Review A引用 267
Cold Atom Physics and Bose-Einstein CondensatesQuantum Information and CryptographyQuantum many-body systems
详细信息
- 发表期刊/会议
- Physical Review A
- 发表日期
- 2007-03-13
- 发表年份
- 2007
关键词
Cold Atom Physics and Bose-Einstein CondensatesQuantum Information and CryptographyQuantum many-body systems
摘要
We have studied the system of hard-core bosons on a two-dimensional optical lattice using a variational algorithm based on projected entangled-pair states. We have investigated the ground-state properties of the system as well as the responses of the system to sudden changes in the parameters. We have compared our results to mean-field results based on a Gutzwiller ansatz.