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    Tan Yong-Gang, Cai Qing-Yu, Shi Ting-Yun. Indistinguishability of orthogonal time-separated bell statesJ. Chin. Phys. B, 2008, 17(9): 3194-3197.
    Tan Yong-Gang, Cai Qing-Yu, Shi Ting-Yun. Indistinguishability of orthogonal time-separated bell statesJ. Chin. Phys. B, 2008, 17(9): 3194-3197.
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    • Indistinguishability of orthogonal time-separated bell states

      Abstract
    • This paper proves that it is impossible to identify orthogonally time-separated Bell states. If two qubits of a Bell state interact with the measurement apparatus at different time, any attempt to identify this state will disturb it.
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