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Tampering detection system using quantum-mechanical systems

United States Patent

December 13, 2011
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The use of quantum-mechanically entangled photons for monitoring the integrity of a physical border or a communication link is described. The no-cloning principle of quantum information science is used as protection against an intruder's ability to spoof a sensor receiver using a `classical` intercept-resend attack. Correlated measurement outcomes from polarization-entangled photons are used to protect against quantum intercept-resend attacks, i.e., attacks using quantum teleportation.
Humble; Travis S. (Knoxville, TN), Bennink; Ryan S. (Knoxville, TN), Grice; Warren P. (Oak Ridge, TN)
Ut-Battelle, LLC (Oak Ridge, TN)
12/ 424,957
April 16, 2009
GOVERNMENT RIGHTS This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.