How to implement decoy-state quantum key distribution for a satellite uplink with 50 dB channel loss
arXiv:1111.0976 · doi:10.1103/PhysRevA.84.062326
Abstract
Quantum key distribution (QKD) takes advantage of fundamental properties of quantum physics to allow two distant parties to share a secret key; however, QKD is hampered by a distance limitation of a few hundred kilometers on earth. The most immediate solution for global coverage is to use a satellite, which can receive separate QKD transmissions from two or more ground stations and act as a trusted node to link these ground stations. In this article, we report a system capable of performing QKD in the high loss regime expected in an uplink to a satellite using weak coherent pulses and decoy states. Such a scenario profits from the simplicity of its receiver payload, but has so far considered to be infeasible due to very high transmission losses (40 - 50 dB). The high loss is overcome by implementing an innovative photon source and advanced timing analysis. Our system handles up to 57 dB photon loss in the infinite key limit, confirming the viability of the satellite uplink scenario. We emphasize that while this system was designed with a satellite uplink in mind, it could just as easily overcome high losses on any free space QKD link.
9 pages, 5 figures, updated to published version
References in corpus (13)
- Free-Space distribution of entanglement and single photons over 144 km
- Hacking commercial quantum cryptography systems by tailored bright illumination
- Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
- Quantum cryptography with finite resources: unconditional security bound for discrete-variable protocols with one-way post-processing
- 200km Decoy-state quantum key distribution with photon polarization
- Reference frame independent quantum key distribution
- Quantum Eavesdropping without Interception: An Attack Exploiting the Dead Time of Single Photon Detectors
- Experimental verification of the feasibility of a quantum channel between Space and Earth
- Controlling passively-quenched single photon detectors by bright light
- After-gate attack on a quantum cryptosystem
- Bridging Visible and Telecom Wavelengths with a Single-Mode Broadband Photon Pair Source
- Quantum Connectivity of Space-Time and Gravitationally Induced Decorrelation of Entanglement
- Min-entropy and quantum key distribution: non-zero key rates for "small" numbers of signals
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