论文标题
有效的纠缠产生和检测广义稳定剂状态
Efficient entanglement generation and detection of generalized stabilizer states
论文作者
论文摘要
大规模纠缠的产生和验证对于量子技术的发展至关重要。在本文中，我们提出了一种有效的方案，以通过使用海森伯格的相互作用来生成大量Qubits的真正多部分纠缠。该方法可以方便地在各种物理平台中实现，包括超导，被困的离子和冷原子系统。为了表征输出量子状态的纠缠，我们概括了稳定器形式主义并开发纠缠证人方法。特别是，我们设计了一种通用搜索算法，以优化纠缠证人，并在给定的噪声水平下使用最少的测量设置。从实际应用的角度来看，我们从数值上研究了实验效率和检测鲁棒性之间的权衡。
The generation and verification of large-scale entanglement are essential to the development of quantum technologies. In this paper, we present an efficient scheme to generate genuine multipartite entanglement of a large number of qubits by using the Heisenberg interaction. This method can be conveniently implemented in various physical platforms, including superconducting, trapped-ion, and cold-atom systems. In order to characterize the entanglement of the output quantum state, we generalize the stabilizer formalism and develop an entanglement witness method. In particular, we design a generic searching algorithm to optimize entanglement witness with a minimal number of measurement settings under a given noise level. From the perspective of practical applications, we numerically study the trade-off between the experiment efficiency and the detection robustness.
