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Quantum Algorithms
Prior entanglement between senders enables perfect quantum network coding with modification
arXiv
Authors: Masahito Hayashi
Year
2007
Paper ID
50094
Status
Preprint
Abstract Read
~2 min
Abstract Words
70
Citations
N/A
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.
Why This Paper Matters
- It adds a 2007 reference point for readers tracking recent quantum research.
- We find a protocol transmitting two quantum states crossly in the butterfly network only with prior entanglement between two senders.
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