期刊
QUANTUM INFORMATION PROCESSING
卷 19, 期 12, 页码 -出版社
SPRINGER
DOI: 10.1007/s11128-020-02928-7
关键词
Entangled states; Quantum Zeno dynamics; Shortcuts to adiabaticity; Rydberg superatom
资金
- National Natural Science Foundation of China [11947078, 11947111, 11947085, 11674037, 11704042]
- LiaoNing Revitalization Talents Program [XLYC1807206]
- Starting Scientific Research Foundation for Doctors of LiaoNing Province [2020-BS-234]
- Natural Science Foundation of LiaoNing Province [20170540010]
- Program for LiaoNing Innovative Talents in University [LR2016001]
- Program of the Educational Office of LiaoNing Province of China [LQ2017006]
In the paper, we propose a scheme for fast preparation of Bell state and W state based on quantum Zeno dynamics and shortcuts to adiabaticity with Rydberg superatom. The quantum information is encoded in the collective state of superatom which contains n individual ladder-type Rydberg atoms. When the Rabi frequencies of classical fields are appropriately regulated, the scheme can be achieved within one step. Moreover, the effects of imperfections induced by leakage of the cavity and atomic spontaneous emission are also taken into account. The numerical simulation result shows that this scheme is robust against both cavity leakage and atomic spontaneous emission.
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