Effects of depolarizing quantum channels on BB84 and SARG04 quantum cryptography protocols

preprint2010arXivOpen access

Abstract

We report experimental studies on the effect of the depolarizing quantum channel on weak-pulse BB84 and SARG04 quantum cryptography. The experimental results show that, in real world conditions in which channel depolarization cannot be ignored, BB84 should perform better than SARG04.

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