Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Raymond G. Beausoleil0
Timothy P. Spiller0
William J. Munro0
Date of Patent
September 23, 2008
0Patent Application Number
109982080
Date Filed
November 26, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A quantum random number generator uses measurements of a quantum state to generate a random value and to authenticate that the quantum state had the required properties for generation of a random series having the desired statistics. One exemplary embodiment generates an entangled photon pair in the singlet Bell state, measures one photon to extract a random value, and measures the other photon for confirmation that the photon pair were in the singlet Bell state. Another embodiment of the invention performs tomographic analysis of a state used for random number generation to confirm that the state used had the desired properties.
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