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Title: Quantum random number generators

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.
Inventors:
; ; ; ;
Issue Date:
OSTI Identifier:
1462695
Assignee:
Los Alamos National Security, LLC (Los Alamos, NM) LANL
Patent Number(s):
10,019,235
Application Number:
14/812,623
Contract Number:
AC52-06NA25396
Resource Relation:
Patent File Date: 2015 Jul 29
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 97 MATHEMATICS AND COMPUTING

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