Experimental study of secure quantum key distribution with source and detection imperfections
arXiv:2208.03894 · doi:10.1103/PhysRevA.106.022614
Abstract
The quantum key distribution (QKD), guaranteed by the principle of quantum physics, is a promising solution for future secure information and communication technology. However, device imperfections compromise the security of real-life QKD systems, restricting the wide deployment of QKD. This study reports a decoy-state BB84 QKD experiment that considers both source and detection imperfections. In particular, we achieved a rigorous finite-key security bound over fiber links of up to 75 km by applying a systematic performance analysis. Furthermore, our study considers more device imperfections than most previous experiments, and the proposed theory can be extended to other discrete-variable QKD systems. These features constitute a crucial step toward securing QKD with imperfect practical devices.
arXiv comment11 pages
References in corpus (46)
- Simple Proof of Security of the BB84 Quantum Key Distribution Protocol
- Decoy State Quantum Key Distribution
- Measurement-device-independent quantum key distribution
- Advances in Quantum Cryptography
- Unconditional Security Of Quantum Key Distribution Over Arbitrarily Long Distances
- Satellite-to-ground quantum key distribution
- Device-independent security of quantum cryptography against collective attacks
- Secure quantum key distribution with realistic devices
- Beating the PNS attack in practical quantum cryptography
- Secure Quantum Key Distribution
- Overcoming the rate-distance barrier of quantum key distribution without using quantum repeaters
- Field test of quantum key distribution in the Tokyo QKD Network
- Secure quantum key distribution over 421 km of optical fiber
- Side-channel-free quantum key distribution
- Quantum Hacking: Experimental demonstration of time-shift attack against practical quantum key distribution systems
- Satellite-to-ground quantum communication using a 50-kg-class micro-satellite
- Field and long-term demonstration of a wide area quantum key distribution network
- 200km Decoy-state quantum key distribution with photon polarization
- 2-GHz clock quantum key distribution over 260 km of standard telecom fiber
- 10~Mb/s quantum key distribution
- Metropolitan all-pass and inter-city quantum communication network
- Loss-tolerant quantum cryptography with imperfect sources
- Numerical approach for unstructured quantum key distribution
- Finite-key analysis on the 1-decoy state QKD protocol
- Reliable numerical key rates for quantum key distribution
- Practical security bounds against the Trojan-horse attack in quantum key distribution
- Quantum key distribution with an efficient countermeasure against correlated intensity fluctuations in optical pulses
- Decoy state quantum key distribution with imperfect source
- Experimental quantum key distribution with source flaws
- Simple Quantum Key Distribution with qubit-based synchronization and a self-compensating polarization encoder
- Experimental Measurement-Device-Independent Quantum Key Distribution with Imperfect Sources
- Quantum key distribution with correlated sources
- Laser damage attack against optical attenuators in quantum key distribution
- Device-Independent Quantum Key Distribution with Random Key Basis
- Reply to "Avoiding the Detector Blinding Attack on Quantum Cryptography"
- Measurement-device-independent quantum key distribution with uncharacterized qubit sources
- Device-independent quantum key distribution with random postselection
- Hacking Quantum Key Distribution via Injection Locking
- Einstein-Podolsky-Rosen steering in Gaussian weighted graph states
- Security proof of practical quantum key distribution with detection-efficiency mismatch
- Hacking the quantum key distribution system by exploiting the avalanche transition region of single photon detectors
- Simple Quantum Key Distribution using a Stable Transmitter-Receiver Scheme
- Experimental Three-State Measurement-Device-Independent Quantum Key Distribution with Uncharacterized Sources
- Improved Finite-Key Security Analysis of Quantum Key Distribution Against Trojan-Horse Attacks
- Secure quantum communication in the presence of phase and polarization dependent loss
- Experimental secure quantum key distribution in presence of polarization-dependent loss