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

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

2012-02-01

arxiv.org/abs/1202.0325v1

Physics

Quantum Physics

Scientific paper

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.

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