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.

Date of Patent:
Feb. 21, 2017

Filed:

Jul. 22, 2014
Applicant:

Raytheon Company, Waltham, MA (US);

Inventors:

Steven R. Wilkinson, Stevenson Ranch, CA (US);

Ulvi Yurtsever, Altadena, CA (US);

Assignee:

Raytheon Company, Waltham, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
H04L 9/0858 (2013.01); H04L 9/0852 (2013.01); H04L 9/0855 (2013.01); H04L 2209/24 (2013.01); H04L 2209/34 (2013.01);
Abstract

A system and method for distributing a quantum key from a first party to a second party. A first node is connected to a public channel, wherein the first node includes a pulse position modulation encoder connected to a quantum channel. A second node is connected to the public channel, wherein the second node includes a pulse position modulation decoder connected to the quantum channel. The pulse position modulation encoder encodes quantum states |0> and |1>, and transmits the encoded quantum states from the first node to the second node via the quantum channel. Quantum state |1> is encoded as |1>≡(|t>+|t>)/√{square root over (2)}.


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