Self-Consistent Approach for Mapping Interacting Systems in Continuous Space to Lattice Models
文献类型：期刊论文
| 作者 | Wu, BA ; Xu, Y ; Dong, L ; Shi, JR |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2012 |
| 卷号 | 29期号:8 |
| 关键词 | WANNIER FUNCTIONS OPTICAL LATTICES ENERGY-BANDS BOSONS ATOMS |
| ISSN号 | 0256-307X |
| 通讯作者 | Wu, BA (reprint author), Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China. |
| 中文摘要 | We propose a general variational principle for mapping the interacting systems in continuous space to lattice models. Based on the principle, we derive a set of self-consistent nonlinear equations for the Wannier functions (or, equivalently for the Bloch functions). These equations show that the Wannier functions can be strongly influenced by the interaction and be significantly different from their non-interacting counterparts. The approach is demonstrated with interacting bosons in an optical lattice, and illustrated quantitatively by a simple model of interacting bosons in a double well potential. It is shown that the so-determined lattice model parameters can be significantly different from their non-interacting values. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10825417] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52429]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wu, BA,Xu, Y,Dong, L,et al. Self-Consistent Approach for Mapping Interacting Systems in Continuous Space to Lattice Models[J]. CHINESE PHYSICS LETTERS,2012,29(8). |
| APA | Wu, BA,Xu, Y,Dong, L,&Shi, JR.(2012).Self-Consistent Approach for Mapping Interacting Systems in Continuous Space to Lattice Models.CHINESE PHYSICS LETTERS,29(8). |
| MLA | Wu, BA,et al."Self-Consistent Approach for Mapping Interacting Systems in Continuous Space to Lattice Models".CHINESE PHYSICS LETTERS 29.8(2012). |
入库方式： OAI收割
来源：物理研究所
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