Optimal State Merging Without Decoupling
arXiv:0905.1324 · doi:10.1007/978-3-642-10698-9_8
Abstract
We construct an optimal state merging protocol by adapting a recently-discovered optimal entanglement distillation protcol [Renes and Boileau, Phys. Rev. A . 73, 032335 (2008)]. The proof of optimality relies only on directly establishing sufficient "amplitude" and "phase" correlations between Alice and Bob and not on usual techniques of decoupling Alice from the environment. This strengthens the intuition from quantum error-correction that these two correlations are all that really matter in two-party quantum information processing.
10 pages, accepted contribution to TQC 2009
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Cited by in corpus (6)
- Polar codes for private and quantum communication over arbitrary channels
- Identifying the Information Gain of a Quantum Measurement
- Quantum polar codes for arbitrary channels
- Duality of channels and codes
- The Physics of Quantum Information: Complementarity, Uncertainty, and Entanglement
- Decoding general error correcting codes and the role of complementarity