Unconditionally secure quantum key distribution over 50 km of standard telecom fibre

2004/12/09 by C. Gobby, Z. L. Yuan, Z.L. Yuan +2 · 2 citations
Computer Science · Engineering · Physics and Astronomy · #Optical Network Technologies #Quantum Information and Cryptography #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.1049/el:20045038

published as Electronics Letters 40, 1603-1605(2004) · 9 pages 2 figures

openalex publication_date 2004/12/09 · arxiv created 2004/12/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

A weak pulse quantum key distribution system is presented, which is secure against all individual attacks, including photon number splitting. By carefully controlling the weak pulse intensity the maximum secure bit rate as a function of the fibre length is demonstrated. Unconditionally secure keys can be formed for standard telecom fibres exceeding 50 km in length.

Citations

• Quantum key distribution over 122 km of standard telecom fiber

Cited by

• Quantum key distribution using a triggered quantum dot source emitting near 1.3μm
• Experimental quantum cryptography with qutrits

Related

• Quantum key distribution over 122 km of standard telecom fiber
• A Quantum Key Distribution Protocol with Selecting Announced States, Robust against Photon Number Splitting Attacks
• Experimental Side-Channel-Secure Quantum Key Distribution over 200 km
• Long-range Quantum Cryptography: Amplified Quantum Key Distribution (AQKD)
• Refrence-Frame-Independent Quantum Key Distribution over 250 km of Optical Fiber