| 报告题目 | Millisecond-lived Circular Rydberg Atoms in a Room temperature experiment |
| 报告人 | 吴海腾 博士 |
| 报告人单位 | 索邦大学 |
| 报告时间 | 2023-04-20 (周四) 10:00 |
| 报告地点 | 上海研究院四号楼329会议室 |
| 主办单位 | 中国科学院量子信息与量子科技创新研究院 |
| 报告介绍 | 报告摘要：Circular Rydberg states are ideal tools for quantum technologies, with huge mutual interactions and extremely long lifetimes in the tens of milliseconds range, two orders of magnitude larger than those of laser-accessible Rydberg states. However, such lifetimes are observed only at zero temperature. At room temperature, blackbody-radiation-induced transfers annihilate this essential asset of circular states, which have thus been used mostly so far in specific, complex cryogenic experiments. We demonstrate here, on a laser-cooled atomic sample, a circular state lifetime of more than one millisecond at room temperature for a principal quantum number 60. The inhibition structure is a simple plane-parallel capacitor that efficiently inhibits the blackbody-radiation-induced transfers. One of the capacitor electrodes is fully transparent and provides complete optical access to the atoms, an essential feature for applications. This experiment paves the way to a wide use of circular Rydberg atoms for quantum metrology and quantum simulation. |