Adiabatic preparation of Multipartite GHZ states via Rydberg ground-state blockade

The multipartite GHZ states are useful resources for quantum information processing. Here we put forward a scalable way to adiabatically prepare the multipartite GHZ states in a chain of Rydberg atoms. Building on the ground-state blockade effect of Rydberg atoms and the stimulated Raman adiabatic p...

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Published inOptics express Vol. 27; no. 15; pp. 20874 - 20885
Main Authors Li, Dong-Xiao, Zheng, Tai-Yu, Shao, Xiao-Qiang
Format Journal Article
LanguageEnglish
Published United States 22.07.2019
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Summary:The multipartite GHZ states are useful resources for quantum information processing. Here we put forward a scalable way to adiabatically prepare the multipartite GHZ states in a chain of Rydberg atoms. Building on the ground-state blockade effect of Rydberg atoms and the stimulated Raman adiabatic passage (STIRAP), we suppress the adverse effect of the atomic spontaneous emission, and obtain a high fidelity of the multipartite GHZ states without requirements on the operational time. After investigating the feasibility of the proposal, we show a 3-qubit GHZ state can be generated in a wide range of relevant parameters and a fidelity above $98\%$98% is achievable with the current experimental technologies.
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ISSN:1094-4087
1094-4087
DOI:10.1364/oe.27.020874