Coherent-state quantum key distribution without random basis switching
Journal Article
·
· Physical Review. A
- Quantum Optics Group, Department of Physics, Faculty of Science, Australian National University, Canberra, Australian Capital Territory 0200 (Australia)
- Department of Physics, University of Queensland, St Lucia, Queensland 4072 (Australia)
The random switching of measurement bases is commonly assumed to be a necessary step of quantum key distribution protocols. In this paper we present a no-switching protocol and show that switching is not required for coherent-state continuous-variable quantum key distribution. Further, this protocol achieves higher information rates and a simpler experimental setup compared to previous protocols that rely on switching. We propose an optimal eavesdropping attack against this protocol, assuming individual Gaussian attacks. Finally, we investigate and compare the no-switching protocol applied to the original Bennett-Brassard 1984 scheme.
- OSTI ID:
- 20974532
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 73; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of finite detector efficiencies on the security evaluation of quantum key distribution
Security bound of two-basis quantum-key-distribution protocols using qudits
Quantum dense key distribution
Journal Article
·
Wed Mar 31 23:00:00 EST 2004
· Physical Review. A
·
OSTI ID:20640967
Security bound of two-basis quantum-key-distribution protocols using qudits
Journal Article
·
Thu Sep 15 00:00:00 EDT 2005
· Physical Review. A
·
OSTI ID:20718506
Quantum dense key distribution
Journal Article
·
Sun Feb 29 23:00:00 EST 2004
· Physical Review. A
·
OSTI ID:20640836