The minimum distance problem for two-way entanglement purification

  title={The minimum distance problem for two-way entanglement purification},
  author={Andris Ambainis and Daniel Gottesman},
  journal={IEEE Transactions on Information Theory},
Entanglement purification takes a number of noisy EPR pairs |00>+|11> and processes them to produce a smaller number of more reliable pairs. If this is done with only a forward classical side channel, the procedure is equivalent to using a quantum error-correcting code (QECC). We instead investigate entanglement purification protocols with two-way classical side channels (2-EPPs) for finite block sizes. In particular, we consider the analog of the minimum distance problem for QECCs, and show… CONTINUE READING
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