Prior entanglement between senders enables perfect quantum network coding with modification
arXiv:0706.0197 · doi:10.1103/PhysRevA.76.040301
Abstract
We find a protocol transmitting two quantum states crossly in the butterfly network only with prior entanglement between two senders. This protocol requires only one qubit transmission or two classical bits transmission in each channel in the butterfly network. It is also proved that it is impossible without prior entanglement. More precisely, an upper bound of average fidelity is given in the butterfly network when prior entanglement is not allowed.
5 pages, 5 figures
References in corpus (5)
Cited by in corpus (42)
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