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Optical realization of quantum gambling machine

P. Zhang, Y.-S. Zhang, Y.-F. Huang, L. Peng, C.-F. Li and G.-C. Guo

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Quantum gambling, a secure remote two-party protocol which has no classical counterpart, is demonstrated through optical approach. A photon is prepared by Alice in a superposition state of two potential paths. Then one path leads to Bob and is split into two parts. The security is confirmed by quantum interference between Alice's path and one part of Bob's path. A quantum gambling machine is demonstrated to be feasible by this way.


PACS

03.67.-a Quantum information

42.79.Sz Optical communication systems, multiplexers, and demultiplexers

42.50.Xa Optical tests of quantum theory

Subjects

Computational physics

Optics, quantum optics and lasers

Quantum information and quantum mechanics

Dates

Issue 3 (May 2008)

Received 18 January 2008, accepted for publication 10 March 2008

Published 18 April 2008



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