Measuring Zak phase in room-temperature atoms
文献类型：期刊论文
| 作者 | Ruosong Mao1; Xingqi Xu1; Jiefei Wang1; Chenran Xu1; Gewei Qian1; Han Cai1; Shi-Yao Zhu1; Da-Wei Wang1 |
| 刊名 | Light: Science & Applications
 |
| 卷号 | 11 |
| ISSN号 | 2047-7538 |
| 英文摘要 | Cold atoms provide a flexible platform for synthesizing and characterizing topological matter, where geometric phases play a central role. However, cold atoms are intrinsically prone to thermal noise, which can overwhelm the topological response and hamper promised applications. On the other hand, geometric phases also determine the energy spectra of particles subjected to a static force, based on the polarization relation between Wannier-Stark ladders and geometric Zak phases. By exploiting this relation, we develop a method to extract geometric phases from energy spectra of room-temperature superradiance lattices, which are momentum-space lattices of timed Dicke states. In such momentum-space lattices the thermal motion of atoms, instead of being a source of noise, provides effective forces which lead to spectroscopic signatures of the Zak phases. We measure Zak phases directly from the anti-crossings between Wannier-Stark ladders in the Doppler-broadened absorption spectra of superradiance lattices. Our approach paves the way of measuring topological invariants and developing their applications in room-temperature atoms. |
| 语种 | 英语 |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128911]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 作者单位 | 1.浙江大学 2.中国科学院合肥物质科学研究院 3.CAS Center of Excellence in Topological Quantum Computation |
| 推荐引用方式 GB/T 7714 | Ruosong Mao,Xingqi Xu,Jiefei Wang,et al. Measuring Zak phase in room-temperature atoms[J]. Light: Science & Applications,11. |
| APA | Ruosong Mao.,Xingqi Xu.,Jiefei Wang.,Chenran Xu.,Gewei Qian.,...&Da-Wei Wang. |
| MLA | Ruosong Mao,et al."Measuring Zak phase in room-temperature atoms".Light: Science & Applications 11 |
入库方式： OAI收割
来源：合肥物质科学研究院
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