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Quantum random number generators

A random number generator, flux technology, applied in random number generators, instruments, digital transmission systems, etc., can solve problems such as multi-chip area

Inactive Publication Date: 2018-06-08
LOS ALAMOS NATIONAL SECURITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conventional circuit-based RNGs that exploit thermal or shot noise may require excessive die area when implemented in integrated circuits

Method used

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  • Quantum random number generators
  • Quantum random number generators
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Embodiment Construction

[0025] As used in this application and the claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. In addition, the term "comprising" means "comprising". Furthermore, the term "coupled" does not exclude the presence of intermediate elements between the coupled items.

[0026] The systems, devices and methods described herein should not be construed as limiting in any way. Instead, the present disclosure is directed to all novel and non-obvious features and aspects of the various disclosed embodiments both alone and in various combinations and subcombinations with each other. The disclosed systems, methods and apparatus are not limited to any particular aspect or feature or combination thereof, nor do the disclosed systems, methods and apparatus require that any one or more particular advantages exist or problems be solved. Any theory of operation is provided to facilitate illustration, but the disclosed systems,...

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Abstract

Random number generators include a thermal optical source and detector configured to produce random numbers based on quantum-optical intensity fluctuations. An optical flux is detected, and signals proportional to optical intensity and a delayed optical intensity are combined. The combined signals can be electrical signals or optical signals, and the optical source is selected so as to have low coherence over a predetermined range of delay times. Balanced optical detectors can be used to reduce common mode noise, and in some examples, the optical flux is directed to only one of a pair of balanced detectors.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Patent Application Serial No. 14 / 812,623, filed July 29, 2015, which is a continuation-in-part of U.S. Patent Application Serial No. 13 / 754,457, filed January 30, 2013, filed Aug. 2012 13 / 600,905, filed September 31, which claims the benefit of US Provisional Application 61 / 541,675, filed September 30, 2011, the contents of all of which are incorporated herein by reference. [0003] Government Support Acknowledgments [0004] This invention was made with Government support under Contract No. DE-AC52-06NA25396 awarded by the US Department of Energy. The government has certain rights in the invention. technical field [0005] The present invention relates generally to random number generators, and more particularly to random number generators that generate random numbers based on quantum phenomena. Background technique [0006] Many applications of computer systems require acce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F7/58
CPCG06F7/588H04L9/0852
Inventor J.E.诺尔德霍尔特R.J.休斯R.T.纽厄尔C.G.彼得森A.罗西维奇
Owner LOS ALAMOS NATIONAL SECURITY
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