Free-space quantum-key distribution

1998/01/06 by W. T. Buttler, R. J. Hughes, Richard Hughes +7 · 2 citations
Computer Science · Mathematics · Physics and Astronomy · #Computer network #Computer science #Computer security #Distribution (mathematics) #Free space #Key (lock) #Mathematics #Optics #Path (computing) #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum cryptography #Quantum information #Quantum key distribution #Quantum mechanics #Space (punctuation) #Telecommunications #quant-ph

paper · pdf · doi:10.1103/physreva.57.2379

5 pages, 2 figures, 2 tables. To be published in Physical review A on or about 1 April 1998

arxiv created 1998/01/06 · openalex publication_date 1998/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A working free-space quantum key distribution (QKD) system has been developed and tested over a 205-m indoor optical path at Los Alamos National Laboratory under fluorescent lighting conditions. Results show that free-space QKD can provide a secure real-time key distribution between parties who have a need to communicate secretly.

Citations

• Experimental Evidence for a Photon Anticorrelation Effect on a Beam Splitter: A New Light on Single-Photon Interferences
• Cipher Printing Telegraph Systems For Secret Wire and Radio Telegraphic Communications
• Quantum cryptography using any two nonorthogonal states
• A single quantum cannot be cloned
• Experimental distinction between the quantum and classical field-theoretic predictions for the photoelectric effect
• Communication by EPR devices
• Quantum cryptography

Cited by

• Quantum key distribution in terms of the Greenberger-Horne-Zeilinger state: Multi-key generation
• Limitations on Practical Quantum Cryptography