Friday, February 3, 2012

1202.0325 (Masahito Hayashi)

Quantum wiretap channel with non-uniform random number and its exponent
and equivocation rate of leaked information
   [PDF]

Masahito Hayashi
A usual code for quantum wiretap channel requires an auxiliary random
variable subject to the perfect uniform distribution. However, it is difficult
to prepare such an auxiliary random variable. We propose a code that requires
only an auxiliary random variable subject to a non-uniform distribution instead
of the perfect uniform distribution. Further, we evaluate the exponential
decreasing rate of leaked information and derive its equivocation rate.
View original: http://arxiv.org/abs/1202.0325

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