Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144km

Details Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144km Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144km

Jan 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007phrvl..98a0504s&link_type=abstract

Physical Review Letters, vol. 98, Issue 1, id. 010504

Physics

Optics

100

Quantum Cryptography, Quantum Communication, Quantum Optics

Scientific paper

We report on the experimental implementation of a Bennett-Brassard 1984 (BB84) protocol type quantum key distribution over a 144 km free-space link using weak coherent laser pulses. Optimization of the link transmission was achieved with bidirectional active telescope tracking, and the security was ensured by employing decoy-state analysis. This enabled us to distribute a secure key at a rate of 12.8bit/s at an attenuation of about 35 dB. Utilizing a simple transmitter setup and an optical ground station capable of tracking a spacecraft in low earth orbit, this outdoor experiment demonstrates the feasibility of global key distribution via satellites.

Affiliated with

Also associated with

No associations

Rating

Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144km does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144km, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experimental Demonstration of Free-Space Decoy-State Quantum Key Distribution over 144km will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1250634