Work

Long-Distance Decoy-State Quantum Key Distribution in Optical Fiber

Year: 2007

Type: article

Abstract: The theoretical existence of photon-number-splitting attacks creates a security loophole for most quantum key distribution (QKD) demonstrations that use a highly attenuated laser source. Using ultralow-noise, high-efficiency transition-edge sensor photodetectors, we have implemented the first version of a decoy-state protocol that incorporates finite statistics without the use of Gaussian approximations in a one-way QKD system, enabling the creation of secure keys immune to photon-number-splitting attacks and highly resistant to Trojan horse attacks over 107 km of optical fiber.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.98.010503

Authors: Danna Rosenberg, Jim W. Harrington, Patrick R. Rice, Philip A. Hiskett, Charles G. Peterson, Richard J. Hughes, Adriana E. Lita, Sae Woo Nam, Jane E. Nordholt

Institutions: Los Alamos National Laboratory, National Institute of Standards and Technology

Language: English

Topic: Quantum Information and Cryptography

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1998921964

FWCI: 15.7

Cites: 21

Cited by: 352

Related to: 10