Experimental quantum key distribution with an untrusted source
arXiv:0806.1671 · doi:10.1364/OL.33.002077
Abstract
The photon statistics of a quantum key distribution (QKD) source is crucial for security analysis. In this paper, we propose a practical method, with only a beam splitter and photodetector involved, to monitor the photon statistics of a QKD source. By implementing in a Plug&Play QKD system, we show that the method is highly practical. The final secure key rate is 52 bit/s, comparing to 78 bit/s when the source is treated as a trusted source.
8 pages, 3 figures
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- Measurement-device-independent quantum communication with an untrusted source
- Measurement-device-independent quantum key distribution of multiple degrees of freedom of a single photon
- Security Analysis of an Untrusted Source for Quantum Key Distribution: Passive Approach
- Source monitoring for continuous-variable quantum key distribution
- Passive scheme with a photon-number-resolving detector for monitoring the untrusted source in a plug-and-play quantum-key-distribution system
- Passive-scheme analysis for solving untrusted source problem in quantum key distribution
- Light Source Monitoring in Quantum Key Distribution with Single Photon Detector at Room Temperature