Efficient entanglement generation and detection of generalized stabilizer states

• URL: http://arxiv.org/abs/2012.07606v2
• Date: Tue, 1 Jun 2021 13:52:22 GMT
• Title: Efficient entanglement generation and detection of generalized stabilizer states
• Authors: Yihong Zhang, Yifan Tang, You Zhou, Xiongfeng Ma
• Abstract summary: 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.
• Score: 3.931366810430107
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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