Systems and methods for enhanced quantum key formation using...

Details Systems and methods for enhanced quantum key formation using... Systems and methods for enhanced quantum key formation using...

2007-09-19

2010-12-14

Homayounmehr, Farid (Department: 2434)

Cryptography

Key management

Key distribution

Reexamination Certificate

active

07853020

ABSTRACT:
Systems and methods for enhanced quantum key distribution (QKD) using an actively compensated QKD system. The method includes exchanging quantum signals between first and second QKD stations and measuring the quantum signal error. An error signal SErepresentative of the system visibility error is then generated. An error-signal threshold STHthat defines a system visibility error limit is then selected. Those qubits measured with the condition SE>STHare called “above-threshold” qubits, while those qubits measured with the condition SE≦STHare called “below-threshold” qubits. Only below-threshold qubits are stored and used to form the final quantum key. This is accomplished by sending a blanking signal SBto the memory unit where the qubits are stored. The blanking signal prevents above-threshold qubits from being stored therein. The raw quantum key so formed has few errors and thus forms a longer final quantum key for a given number of exchanged quantum signals.

REFERENCES:
patent: 5243649 (1993-09-01), Franson
patent: 5307410 (1994-04-01), Bennett
patent: 5757912 (1998-05-01), Blow
patent: 6028935 (2000-02-01), Rarity et al.
patent: 6438234 (2002-08-01), Gisin et al.
patent: 7068790 (2006-06-01), Elliott
patent: 7587049 (2009-09-01), Trifonov et al.
patent: 7606371 (2009-10-01), Zavriyev et al.
patent: 7757086 (2010-07-01), Walmsley
patent: 2004/0190725 (2004-09-01), Yuan et al.
patent: 2005/0047601 (2005-03-01), Shields et al.
patent: 2007/0064945 (2007-03-01), Yuan et al.
patent: 2007/0133798 (2007-06-01), Elliott

Affiliated with

Also associated with

Rating

Systems and methods for enhanced quantum key formation using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Systems and methods for enhanced quantum key formation using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for enhanced quantum key formation using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4205411