Differential phase shift quantum key distribution experiment over 105 km fibre
By Hiroki Takesue, Eleni Diamanti, Toshimori Honjo, C. Langrock, M. Fejer, Kyo Inoue, Yoshihisa Yamamoto. 2005
148 citations recorded by the source corpus.
We report a quantum key distribution experiment based on the differential phase shift keying (DPSK) protocol with a Poissonian photon source, in which secure keys were generated over >100 km fibre for the first time. We analysed the security of the DPSK protocol and showed that it is robust against strong attacks by Eve, including a photon number splitting attack. To implement this protocol, we developed a new detector for the 1.5 μm band based on frequency up-conversion in a periodically poled lithium niobate waveguide followed by an Si avalanche photodiode. The use of detectors increased the sifted key generation rate up to >1 Mbit s−1 over 30 km fibre, which is two orders of magnitude larger than the previous record.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/eff01f019108aa13629c4395626b3ecaf9f2997b
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Artificial Intelligence
- Toshimori Honjo
- Hiroki Takesue
- Momtchil Peev
- Nicolas J. Cerf
- Miloslav Dusek
- H. Bechmann-Pasquinucci
- Kyo Inoue
- Harald Weinfurter
In Atomic and Molecular Physics, and Optics
- Momtchil Peev
- Nicolas J. Cerf
- Miloslav Dusek
- H. Bechmann-Pasquinucci
- Hiroki Takesue
- Toshimori Honjo
- Kyo Inoue
- Harald Weinfurter
Citations in the corpus
- Differential-phase-shift quantum key distribution (2002, methodology): “Implementation System experiments were conducted [5,6], the detail of which is described in another paper in this meeting.”
- Free-Space distribution of entanglement and single photons over 144 km (2006, methodology): “and a laboratory experiment was carried out in coiled fibr”
- Hacking commercial quantum cryptography systems by tailored bright illumination (2010, methodology): “With suitable modifications it applies to differential phase shift (DPS”
- The security of practical quantum key distribution (2008, methodology): “The DPS protocol has been already the object of several experimental demonstrations (Diamanti et al., 2006; Takesue et al., 2005, 2007).”
- Single-photon detectors for optical quantum information applications (2009, unknown): “65).”