arXiv:0910.2645 [quant-ph]AbstractReferencesReviewsResources
Unconditionally Secure Quantum Bit Commitment Using Neutron Double-Slit Interference
Published 2009-10-14, updated 2010-10-22Version 4
Using a neutron double-slit setup, we construct a quantum bit commitment scheme in which time development of quantum states plays an essential role. Our scheme evades the widely accepted no-go theorem by the fact that it is neither possible to stop the time evolution of spreading wave packets, nor is it possible to evolve them backward in time. Moreover, for unstable particles such as neutrons, one cannot delay detecting their positions indefinitely, or they would disintegrate spontaneously and escape detection. We find that using non-stationary states instead of stationary ones, unconditionally secure quantum bit commitment is possible.
Comments: Revised protocol, 4 pages, no figure
Categories: quant-ph
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