A general method of selecting quantum channel for bidirectional quantum teleportation. (English) Zbl 1298.81035
Summary: Based on tensor representation and Bell basis measurement in bidirectional quantum teleportation, a criterion that can be used to judge whether a four-qubit quantum state can be regarded as quantum channel or not in bidirectional teleportation is suggested and a theoretical scheme of bidirectional teleportation via four-qubit state as the quantum channel is proposed. In accordance with this criterion we give a general method of selecting quantum channel in bidirectional teleportation, which is determined by the channel parameter matrix \(R\) in the Bell basis measurement. This general method provide a theoretical basis for quantum channel selection in bidirectional quantum teleportation experiments.
MSC:
81P45 | Quantum information, communication, networks (quantum-theoretic aspects) |
81P40 | Quantum coherence, entanglement, quantum correlations |
81P15 | Quantum measurement theory, state operations, state preparations |
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