Unconditionally Secure Quantum Bit Commitment
Quantum Physics
2007-05-23 v1
Abstract
The ``impossibility proof'' on unconditionally secure quantum bit commitment is examined. It is shown that the possibility of juxtaposing quantum and classical randomness has not been properly taken into account. A specific protocol that beats entanglement cheating with entanglement is proven to be unconditionally secure.
Cite
@article{arxiv.quant-ph/0505132,
title = {Unconditionally Secure Quantum Bit Commitment},
author = {Horace P. Yuen},
journal= {arXiv preprint arXiv:quant-ph/0505132},
year = {2007}
}
Comments
4 pages, no figures; This paper is an expanded, self-contained version of QBC4 presented in quant-ph/0305143. It is the basis of talks to be presented at the University of Pavia, Italy on May 23, 2005 and Nottingham University, England on May 25, 2005