# Quantum correlations and secret bits

 Authors: A Acin, N Gisin Physical Review Letters 94, 020501 (2005) http://dx.doi.org/10.1103/PhysRevLett.94.020501 It is shown that (i) all entangled states can be mapped by single-copy measurements into probability distributions containing secret correlations, and (ii) if a probability distribution obtained from a quantum state contains secret correlations, then this state has to be entangled. These results prove the existence of a two-way connection between secret and quantum correlations in the process of preparation. They also imply that either it is possible to map any bound entangled state into a distillable probability distribution or bipartite bound information exists. qcorrsecretbits.pdf

# BibTeX Source

@Article{Acin2005,
author =       "A. Acin and N. Gisin",
title =        "Quantum correlations and secret bits",
journal =      "Physical Review Letters",
year =         "2005",
volume =       "94",
pages =        "020501",
number =       "2",
abstract =     "It is shown that (i) all entangled states can be mapped by single-copy
measurements into probability distributions containing secret correlations, and
(ii) if a probability distribution obtained from a quantum state contains secret
correlations, then this state has to be entangled. These results prove the
existence of a two-way connection between secret and quantum correlations in the
process of preparation. They also imply that either it is possible to map any bound
entangled state into a distillable probability distribution or bipartite bound
information exists.",
doi =          "10.1103/PhysRevLett.94.020501",
owner =        "cc",
sn =           "0031-9007",
timestamp =    "2010.08.20",
ut =           "WOS:000226478900005",
}