Topological Charge Pumping in a One-Dimensional Optical Lattice
文献类型：期刊论文
| 作者 | Wang, L ; Troyer, M ; Dai, X |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2013 |
| 卷号 | 111期号:2 |
| ISSN号 | 0031-9007 |
| 通讯作者 | Wang, L (reprint author), ETH, CH-8093 Zurich, Switzerland. |
| 中文摘要 | A topological charge pump transfers charge in a quantized fashion. The quantization is stable against the detailed form of the pumping protocols and external noises and shares the same topological origin as the quantum Hall effect. We propose an experimental setup to realize topological charge pumping of cold fermionic atoms in a one-dimensional optical lattice. The quantization of the pumped charge is confirmed by first-principles simulations of the dynamics of uniform and trapped systems. Quantum effects are shown to be crucial for the topological protection of the charge quantization. Finite-temperature and nonadiabatic effects on the experimental observables are discussed. The realization of such a topological charge pump serves as a firm step toward exploring topological states and nonequilibrium dynamics using cold atoms. |
| 资助信息 | Swiss National Science Foundation through the NCCR QSIT; European Research Council; National Science Foundation of China |
| 语种 | 英语 |
| 公开日期 | 2014-01-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57608]  |
| 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 | Wang, L,Troyer, M,Dai, X. Topological Charge Pumping in a One-Dimensional Optical Lattice[J]. PHYSICAL REVIEW LETTERS,2013,111(2). |
| APA | Wang, L,Troyer, M,&Dai, X.(2013).Topological Charge Pumping in a One-Dimensional Optical Lattice.PHYSICAL REVIEW LETTERS,111(2). |
| MLA | Wang, L,et al."Topological Charge Pumping in a One-Dimensional Optical Lattice".PHYSICAL REVIEW LETTERS 111.2(2013). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。