Precise evaluation of leaked information with universal2 privacy
amplification in the presence of quantum attacker [PDF]
Masahito HayashiWe treat secret key extraction when the eavesdropper has correlated quantumView original: http://arxiv.org/abs/1202.0601
states. We propose quantum privacy amplification theorems different from
Renner's, which are based on quantum conditional Renyi entropy of order 1+s.
Using those theorems, we derive an exponential decreasing rate for leaked
information and the asymptotic equivocation rate.
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