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Yan Manjun,Ma Long 한국물리학회 2022 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.81 No.3
Continuous-variable entanglement plays a very important role in quantum information processes. In quantum information protocols based on continuous variable entanglement, long-term data acquisition and information processing are necessary, such as gate sequence for quantum computation and gravitational wave detection. The degree of entanglement is mainly afected by the coating parameters of the output coupler. In this paper, we theoretically analyze the efect of diferent transmittances of the output coupler on the degree of entanglement, which provides a theoretical basis for further realizing highdegree and long-term stable of entanglement