Macroscopic superposition of vortex states in a matter wave
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909376071073792 |
|---|---|
| author | Kong, Lingran Gao, Tianyou Peng, Shi-Guo Dong, Nenghao Zhao, Lijie Cao, Lushuai Peng, Guangshan Zhang, Wenxian Zhan, Mingsheng Jiang, Kaijun |
| author_facet | Kong, Lingran Gao, Tianyou Peng, Shi-Guo Dong, Nenghao Zhao, Lijie Cao, Lushuai Peng, Guangshan Zhang, Wenxian Zhan, Mingsheng Jiang, Kaijun |
| contents | Generating the vortex-state superposition in a matter wave is demanded in many quantum processes such as quantum memory and quantum metrology. Here we report the experimental generation of macroscopic superposition of vortex states in ultracold quantum gases. By transferring an optical vortex-state superposition to the center-of-mass rotational state of ultracold atoms using the Raman coupling technique, we realize two-vortex and three-vortex superposition states in quantum gases, demonstrating the high dimensionality of the vortex state. We show the controllability of the superposition states on the Bloch sphere. The lifetime of the vortex superposition state in quantum gases is as large as 25 ms, about two orders of magnitude longer than the storage time in atomic ensembles. This work paves the way for high dimensional quantum processing in matter waves. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_01189 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Macroscopic superposition of vortex states in a matter wave Kong, Lingran Gao, Tianyou Peng, Shi-Guo Dong, Nenghao Zhao, Lijie Cao, Lushuai Peng, Guangshan Zhang, Wenxian Zhan, Mingsheng Jiang, Kaijun Quantum Gases Atomic Physics Generating the vortex-state superposition in a matter wave is demanded in many quantum processes such as quantum memory and quantum metrology. Here we report the experimental generation of macroscopic superposition of vortex states in ultracold quantum gases. By transferring an optical vortex-state superposition to the center-of-mass rotational state of ultracold atoms using the Raman coupling technique, we realize two-vortex and three-vortex superposition states in quantum gases, demonstrating the high dimensionality of the vortex state. We show the controllability of the superposition states on the Bloch sphere. The lifetime of the vortex superposition state in quantum gases is as large as 25 ms, about two orders of magnitude longer than the storage time in atomic ensembles. This work paves the way for high dimensional quantum processing in matter waves. |
| title | Macroscopic superposition of vortex states in a matter wave |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2411.01189 |