Distinguishment of Greenberger-Horne-Zeilinger States in Rydberg Atoms via Noncyclic Geometric Quantum Computation
Distinguishment of Greenberger-Horne-Zeilinger States in Rydberg Atoms via Noncyclic Geometric Quantum Computation
复制标题
通过非循环几何量子计算区分里德堡原子中的 Greenberger-Horne-Zeilinger 态
DOI：
10.1002/andp.202100057
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发表时间：
2021
影响因子：
2.4
通讯作者：
Su Shi-Lei
中科院分区：
文献类型：
--
作者：
Guo Fu-Qiang;Zhu Xiao-Yu;Yan Lei-Lei;Feng Mang;Su Shi-Lei
由于量子纠缠在量子信息处理中起着至关重要的作用，分析纠缠态对于实际应用是必不可少的。本文提出了一种简单而直接的方案，利用Rydberg原子的非绝热非循环几何量子计算来区分任意N量子比特的Greenberger-Horne-Zeilinger（GHZ）态.贝尔态也可以完全区分使用这种方法。通过对Bell态和N-量子比特GHZ态的数值模拟，验证了该协议的有效性，并给出了令人满意的结果.此外，这个想法是灵活的，也就是说，在任何平台上都可以使用。该方案简单易行，在量子信息科学中具有重要的理论和实验价值。
Since quantum entanglement plays a crucial role in quantum information processing, analyzing entangled states is indispensable for practical applications. Here a simple and direct protocol to distinguish arbitraryN‐qubit Greenberger–Horne–Zeilinger (GHZ) states by novel nonadiabatic noncyclic geometric quantum computation using Rydberg atoms is put forward. The Bell states can also be distinguished completely using this way. The protocol is justified by numerical simulation for Bell states andN‐qubit GHZ states, which evaluates the robustness and shows gratifying results. In addition, the idea is flexible, that is, available in any platform. Due to its simplicity and easy operation, the scheme would be very useful in quantum information science both theoretically and experimentally.