期刊
JOURNAL OF MODERN OPTICS
卷 48, 期 13, 页码 2049-2054出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500340108240906
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We argue that the two parties in any quantum teleportation protocol need to share more resources than just an entangled state and a classical communication channel. As the phase between orthogonal states has no physical meaning by itself, a shared standard defining all relevant phases is necessary. We discuss several physical implementations of qubits and the corresponding physical meaning of phase.
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