On High-Dimensional Twin-Field Quantum Key Distribution
arXiv:2405.04207 · doi:10.22331/q-2025-10-01-1869
Abstract
Twin-Field Quantum Key Distribution (QKD) is a QKD protocol that uses single-photon interference to perform QKD over long distances. QKD protocols that encode information using high-dimensional quantum states can benefit from increased key rates and higher noise resilience. We define the essence of Twin-Field QKD and explore its generalization to higher dimensions. Further, we show that, ultimately, the Twin-Field protocol cannot be generalized to higher dimensions in accordance with our definition.
21 pages, 1 figure
References in corpus (30)
- Quantum cryptography: Public key distribution and coin tossing
- Measurement-device-independent quantum key distribution
- General Benchmarks for Quantum Repeaters
- Fundamental Limits of Repeaterless Quantum Communications
- Overcoming the rate-distance barrier of quantum key distribution without using quantum repeaters
- Quantum Cryptography using larger alphabets
- High-dimensional quantum communication: benefits, progress, and future challenges
- Quantum State Discrimination
- Sending or not sending: twin-field quantum key distribution with large misalignment error
- Sending-or-Not-Sending with Independent Lasers: Secure Twin-Field Quantum Key Distribution Over 509 km
- Experimental Twin-Field Quantum Key Distribution Over 1000 km Fiber Distance
- Security Proof for Quantum Key Distribution Using Qudit Systems
- High-Dimensional Quantum Key Distribution based on Multicore Fiber using Silicon Photonic Integrated Circuits
- Twin-Field Quantum Key Distribution over 511 km Optical Fiber Linking two Distant Metropolitans
- Phase-Matching Quantum Key Distribution
- Experimental Twin-Field Quantum Key Distribution Through Sending-or-Not-Sending
- Twin-field Quantum Key Distribution without Phase Post-Selection
- Proof-of-principle experimental demonstration of twin-field type quantum key distribution
- Field Test of Twin-Field Quantum Key Distribution through Sending-or-Not-Sending over 428 km
- A largely self-contained and complete security proof for quantum key distribution
- High-dimensional decoy-state quantum key distribution over 0.3 km of multicore telecommunication optical fibers
- Twin-field quantum key distribution without optical frequency dissemination
- Efficient time-bin encoding for practical high-dimensional quantum key distribution
- Unconditional security of sending or not sending twin-field quantum key distribution with finite pulses
- Tight finite-key security for twin-field quantum key distribution
- Practical decoy-state method for twin-field quantum key distribution
- Optimized protocol for twin-field quantum key distribution
- Finite-key analysis for twin-field quantum key distribution with composable security
- Securing quantum key distribution systems using fewer states
- Surpassing the repeaterless bound with a photon-number encoded measurement-device-independent quantum key distribution protocol