Efficient distillation beyond qubits

  title={Efficient distillation beyond qubits},
  author={Karl Gerd H. Vollbrecht and Michael M. Wolf},
  journal={Physical Review A},
We provide generalizations of known two-qubit entanglement distillation protocols for arbitrary Hilbert space dimensions. The protocols, which are analogs of the hashing and breeding procedures, are adapted to bipartite quantum states that are diagonal in a basis of maximally entangled states. We show that the obtained rates are optimal, and thus equal to the distillable entanglement, for a (d-1)-parameter family of rank deficient states. Methods to improve the rates for other states are… Expand
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