Optimal distillation of a GHZ state
arXiv:quant-ph/0007042 · doi:10.1103/PhysRevLett.85.4811
Abstract
We present the optimal local protocol to distill a Greenberger-Horne-Zeilinger (GHZ) state from a single copy of any pure state of three qubits.
RevTex, 4 pages, 2 figures. Published version, some references added