Megabits secure key rate quantum key distribution

Abstract

Quantum cryptography (QC) can provide unconditional secure communication between two authorized parties based on the basic principles of quantum mechanics. However, imperfect practical conditions limit its transmission distance and communication speed. Here we implemented the differential phase shift (DPS) quantum key distribution (QKD) with up-conversion assisted hybrid photon detector (HPD) and achieved 1.3 M bits per second secure key rate over a 10-km fiber, which is tolerant against the photon number splitting (PNS) attack, general collective attacks on individual photons, and any other known sequential unambiguous state discrimination (USD) attacks.

arXiv comment14 pages, 4 figures

Cited by in corpus (20)

• Advances in Quantum Cryptography
• Secure Quantum Key Distribution
• Proof-of-principle demonstration of measurement-device-independent quantum key distribution using polarization qubits
• Coexistence of high-bit-rate quantum key distribution and data on optical fiber
• 2-GHz clock quantum key distribution over 260 km of standard telecom fiber
• Metropolitan all-pass and inter-city quantum communication network
• Continuous operation of high bit rate quantum key distribution
• A balanced homodyne detector for high-rate Gaussian-modulated coherent-state quantum key distribution
• Experimental quantum key distribution without monitoring signal disturbance
• Deploying an inter-European quantum network
• Experimental demonstration of counterfactual quantum communication
• Ultralow noise up-conversion detector and spectrometer at telecom band
• Unconditional Security of Single-Photon Differential Phase Shift Quantum Key Distribution
• Security Analysis of an Untrusted Source for Quantum Key Distribution: Passive Approach
• Detection of ultra-weak laser pulses by free-running single-photon detectors: modeling dead time and dark counts effects
• Upconversion of optical signals with multi-longitudinal-mode pump lasers
• Integrated four-channel all-fiber up-conversion single-photon-detector with adjustable efficiency and dark count
• Unexpected detection rate dependence of the intrinsic detection efficiency in single-photon detectors based on avalanche diodes
• Single-photon-detection attack on the phase-coding continuous-variable quantum cryptography
• Quantum counterfactuality with identical particles