Simple Quantum Key Distribution using a Stable Transmitter-Receiver Scheme
arXiv:2104.07442 · doi:10.1364/OL.418851
Abstract
Quantum Key Distribution (QKD) is a technology that allows secure key exchange between two distant users. A widespread adoption of QKD requires the development of simple, low-cost, and stable systems. However, implementation of the current QKD requires a complex self-alignment process during the initial stage and an additional hardware to compensate the environmental disturbances. In this study, we have presented the implementation of a simple QKD with the help of a stable transmitter-receiver scheme, which simplifies the self-alignment and is robust enough to withstand environmental disturbances. In case of the stability test, the implementation system is able to remain stable for 48 hours and exhibits an average quantum bit error rate of less than 1\% without any feedback control. The scheme is also tested over a fiber spool, obtaining a stable and secure finite key rate of 7.32k bits per second over a fiber spool extending up to 75 km. The demonstrated long-term stability and obtained secure key rate prove that our method of implementation is a promising alternative for practical QKD systems, in particular, for Cubesat platform and satellite applications.
arXiv comment13 pages, 3 figures,accepted by Optics Letters
References in corpus (30)
- Satellite-to-ground quantum key distribution
- Secure quantum key distribution with realistic devices
- Field test of quantum key distribution in the Tokyo QKD Network
- Satellite-relayed intercontinental quantum network
- Progress in satellite quantum key distribution
- Concise Security Bounds for Practical Decoy-State Quantum Key Distribution
- Experimental Demonstration of Polarization Encoding Measurement-Device-Independent Quantum Key Distribution
- Experimental Satellite Quantum Communications
- Experimental quantum key distribution beyond the repeaterless secret key capacity
- Field and long-term demonstration of a wide area quantum key distribution network
- 2-GHz clock quantum key distribution over 260 km of standard telecom fiber
- High-speed measurement-device-independent quantum key distribution with integrated silicon photonics
- Attacking practical quantum key distribution system with wavelength dependent beam splitter and multi-wavelength sources
- Beating the fundamental rate-distance limit in a proof-of-principle quantum key distribution system
- Finite-key analysis on the 1-decoy state QKD protocol
- Drone-based all-weather entanglement distribution
- Metropolitan quantum key distribution with silicon photonics
- Simple 2.5 GHz time-bin quantum key distribution
- CubeSat quantum communications mission
- Practical gigahertz quantum key distribution robust against channel disturbance
- Patterning-effect-free intensity modulator for secure decoy-state quantum key distribution
- Quantum key distribution with an efficient countermeasure against correlated intensity fluctuations in optical pulses
- Simple Quantum Key Distribution with qubit-based synchronization and a self-compensating polarization encoder
- Fast and simple qubit-based synchronization for quantum key distribution
- Performance and security of 5 GHz repetition rate polarization-based Quantum Key Distribution
- All-fiber self-compensating polarization encoder for Quantum Key Distribution
- Machine Learning for Optimal Parameter Prediction in Quantum Key Distribution
- Simple and high-speed polarization-based QKD
- Polarization basis tracking scheme for quantum key distribution with revealed sifted key bits
- Practical phase-modulation stabilization in quantum key distribution via machine learning
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- A Sagnac-based arbitrary time-bin state encoder for quantum communication applications
- Enabling CV-MDI-QKD for low squeezed states using non-Gaussian operations