The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2010
Filed:
Apr. 20, 2006
Marco Fiorentino, Mountain View, CA (US);
William J. Munro, Bristol, GB;
Raymond G. Beausoleil, Redmond, WA (US);
Sean Spillane, Mountain View, CA (US);
Charles Santori, Sunnyvale, CA (US);
Marco Fiorentino, Mountain View, CA (US);
William J. Munro, Bristol, GB;
Raymond G. Beausoleil, Redmond, WA (US);
Sean Spillane, Mountain View, CA (US);
Charles Santori, Sunnyvale, CA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Various embodiments of the present invention are directed optical-based quantum random number generators. In one embodiment, a quantum random number generator includes an input state generator that generates a first optical quantum system and a second optical quantum system in an entangled state, a detector that measures the state of the first optical quantum system and the state of the second optical quantum system, and a system control that evaluates a result obtained from measuring the state of the first optical quantum system and state of the second optical quantum system to determine whether or not to append a number associated with the result to the sequence of random numbers. The quantum random number generator also include state controllers, located between the input state generator and the detector, that are operationally controlled by the system control to maintain the entangled state, based on results obtained from previous measurements performed on the first and second optical quantum systems.