Long-distance decoy-state quantum key distribution in optical fiber.
Phys Rev Lett
; 98(1): 010503, 2007 Jan 05.
Article
en En
| MEDLINE
| ID: mdl-17358462
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.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev Lett
Año:
2007
Tipo del documento:
Article
País de afiliación:
Estados Unidos