https://doi.org/10.1140/epjp/s13360-024-05450-2
Regular Article
Fast generation of GHZ state with Rydberg superatom by transitionless quantum driving
1
College of Physics, Bohai University, 121013, Jinzhou, Liaoning, China
2
Department of Physics, Yanbian University, 133022, Yanji, Jilin, China
c
jiyanqiang@qymail.bhu.edu.cn
h
xiuxiaomingdl@126.com
Received:
14
April
2024
Accepted:
12
July
2024
Published online:
19
July
2024
GHZ state plays a crucial role in quantum computing and quantum communication. Thus, the fast and robust generation of GHZ state is important. In this paper, we propose a scheme for fast generation of three-particle GHZ state with Rydberg superatoms. The quantum information is encoded in the collective states of superatom which contains many individual inverted-Y Rydberg atoms. When the Rabi frequencies of classical fields are appropriately regulated, this scheme can be completed in one step with quantum Zeno dynamics and transitionless quantum driving. In addition, we analyze the influence of decoherence, noise and cavity loss on the fidelity. Numerical simulation results show that the scheme has a high fidelity. Subsequently, the 
-particle GHZ state is generated with the same method. Meanwhile, we analyze the population and fidelity when =16.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
