Self-authenticating quantum random bit generators

Details Self-authenticating quantum random bit generators Self-authenticating quantum random bit generators

2007-04-18

2010-12-07

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07849122

ABSTRACT:
Various embodiments of the present invention are directed to self-authenticating, quantum random bit generators that can be integrated into an optoelectronic circuit. In one embodiment, a quantum random bit generator comprises a transmission layer that includes an electromagnetic radiation source coupled to a waveguide branching into a first, second, and third waveguides. The radiation source generates pulses of electromagnetic radiation in a first polarization state. Polarization rotators are operably coupled to the second and third waveguides and rotate pulses transmitted in the second waveguide into a second polarization state and rotate pulses transmitted in the third waveguide into a third polarization state. The system control generates a sequence of bits based on polarization basis states of the pulses transmitted in the first waveguide, and tomographically authenticates randomness of the sequence based on polarization basis states of the second and third pulses.

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Li Y et al—“Parallel Optical Generation of the Binomial Probability Functions”—Optics Communications vol. 71 No. 3/4 May 5, 1989—pp. 161-164.
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Hewlett-Packard Development Company, L.P., EP 07755826.0-1229 (co-pending application), Nov. 25, 2009 examinatin report issued by EPO.
Hewlett-Packard Development Company, L.P., KR 2008-7026289 (co-pending application), English Translation of Jan. 6, 2010 Notice of Preliminary Rejection issued by KIPO.

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