淡江大學機構典藏:Item 987654321/120601
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    題名: Adaptive State Fidelity Estimation for Higher Dimensional Bipartite Entanglement
    作者: Wu, Jun-Yi
    關鍵詞: adaptive state fidelity estimation;higher dimensional entanglement;Bell-type states
    日期: 2020-08-12
    上傳時間: 2021-04-22 12:10:41 (UTC+8)
    摘要: An adaptive method for quantum state fidelity estimation in bipartite higher dimensional systems is established. This method employs state verifier operators which are constructed by local POVM operators and adapted to the measurement statistics in the computational basis. Employing this method, the state verifier operators that stabilize Bell-type entangled states are constructed explicitly. Together with an error operator in the computational basis, one can estimate the lower and upper bounds on the state fidelity for Bell-type entangled states in few measurement configurations. These bounds can be tighter than the fidelity bounds derived in [Bavaresco et al., Nature Physics (2018), 14, 1032–1037], if one constructs more than one local POVM measurements additional to the measurement in the computational basis.
    關聯: Entropy 22(8), 886
    DOI: 10.3390/e22080886
    顯示於類別:[物理學系暨研究所] 期刊論文

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