Experimental Twin-Field Quantum Key Distribution Through Sending-or-Not-Sending

Abstract

Channel loss seems to be the most severe limitation on the practical application of long distance quantum key distribution. The idea of twin-field quantum key distribution can improve the key rate from the linear scale of channel loss in the traditional decoy-state method to the square root scale of the channel transmittance. However, the technical demanding is rather tough because it requests single photon level interference of two remote independent lasers. Here, we adopt the technology developed in the frequency and time transfer to lock two independent lasers' wavelengths and utilize additional phase reference light to estimate and compensate the fiber fluctuation. Further with a single photon detector with high detection rate, we demonstrate twin field quantum key distribution through the sending-or-not-sending protocol with realistic phase drift over 300 km optical fiber spools. We calculate the secure key rates with finite size effect. The secure key rate at 300 km ($1.96\times 10^{-6}$) is higher than that of the repeaterless secret key capacity ($8.64\times 10^{-7}$).

arXiv comment34 pages, 10 figures and 9 tables

References in corpus (29)

• Quantum Cryptography
• The Security of Practical Quantum Key Distribution
• Decoy State Quantum Key Distribution
• Measurement-device-independent quantum key distribution
• Satellite-to-ground quantum key distribution
• Quantum Key Distribution with High Loss: Toward Global Secure Communication
• Beating the PNS attack in practical quantum cryptography
• Fundamental Limits of Repeaterless Quantum Communications
• General Benchmarks for Quantum Repeaters
• Overcoming the rate-distance barrier of quantum key distribution without using quantum repeaters
• Hacking commercial quantum cryptography systems by tailored bright illumination
• Measurement device independent quantum key distribution over 404 km optical fibre
• Satellite-relayed intercontinental quantum network
• Secure quantum key distribution over 421 km of optical fiber
• Side-channel-free quantum key distribution
• Fundamental rate-loss tradeoff for optical quantum key distribution
• Kinetic-inductance-limited reset time of superconducting nanowire photon counters
• Sending or not sending: twin-field quantum key distribution with large misalignment error
• Experimental quantum key distribution beyond the repeaterless secret key capacity
• Measurement-device-independent quantum key distribution over 200 km
• Making the decoy-state measurement-device-independent quantum key distribution practically useful
• Large scale quantum key distribution: challenges and solutions
• Proof-of-principle experimental demonstration of twin-field type quantum key distribution
• Beating the fundamental rate-distance limit in a proof-of-principle quantum key distribution system
• Quantum Cryptography
• Sending-or-not twin-field quantum key distribution in practice
• Stable, high-performance operation of a fiber-coupled superconducting nanowire avalanche photon detector
• Superconducting nanowire single photon detector with on-chip bandpass filter
• Nonlatching Superconducting Nanowire Single-Photon Detection with Quasi-Constant-Voltage Bias

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