Phys. Rev. Lett. 90, 057901 (2003) [4 pages]Optimal Remote State PreparationReceived 15 September 2002; published 4 February 2003 We prove that it is possible to remotely prepare an ensemble of noncommuting mixed states using communication equal to the Holevo information for this ensemble. This remote preparation scheme may be used to convert between different ensembles of mixed states in an asymptotically lossless way, analogous to concentration and dilution for entanglement. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.057901
DOI:
10.1103/PhysRevLett.90.057901
PACS:
03.67.Hk, 03.65.Ud
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