Experimental Passive Round-Robin Differential Phase-Shift Quantum Key Distribution
arXiv:1505.08076 · doi:10.1103/PhysRevLett.114.180502
Abstract
In quantum key distribution (QKD), the bit error rate is used to estimate the information leakage and hence determines the amount of privacy amplification --- making the final key private by shortening the key. In general, there exists a threshold of the error rate for each scheme, above which no secure key can be generated. This threshold puts a restriction on the environment noises. For example, a widely used QKD protocol --- BB84 --- cannot tolerate error rates beyond 25%. A new protocol, round-robin differential phase shifted (RRDPS) QKD, essentially removes this restriction and can in principle tolerate more environment disturbance. Here, we propose and experimentally demonstrate a passive RRDPS QKD scheme. In particular, our 500 MHz passive RRDPS QKD system is able to generate a secure key over 50 km with a bit error rate as high as 29%. This scheme should find its applications in noisy environment conditions.
5 pages, 3 figures
References in corpus (8)
- Simple Proof of Security of the BB84 Quantum Key Distribution Protocol
- Decoy State Quantum Key Distribution
- Unconditional Security Of Quantum Key Distribution Over Arbitrarily Long Distances
- Detecting Single Infrared Photons with 93% System Efficiency
- Quantum key distribution over 40 dB channel loss using superconducting single photon detectors
- Alternative schemes for measurement-device-independent quantum key distribution
- Ultralow noise up-conversion detector and spectrometer at telecom band
- Unconditional Security of Single-Photon Differential Phase Shift Quantum Key Distribution
Cited by in corpus (45)
- Secure quantum key distribution with realistic devices
- Practical challenges in quantum key distribution
- Phase-Matching Quantum Key Distribution
- Two-photon interference: the Hong-Ou-Mandel effect
- Frequency-domain Hong-Ou-Mandel interference
- Continuous-variable quantum key distribution system: past, present, and future
- Explosive Percolation: Novel critical and supercritical phenomena
- Recent advances on integrated quantum communications
- Experimental quantum key distribution with source flaws
- Quantum cryptography: key distribution and beyond
- Experimental round-robin differential phase-shift quantum key distribution
- Robust and stable delay interferometers with application to -dimensional time-frequency quantum key distribution
- Proof-of-principle experimental realization of a qubit-like qudit-based quantum key distribution scheme
- Robustness of round-robin differential-phase-shift quantum-key-distribution protocol against source flaws
- Differential-phase-shift quantum key distribution protocol with small number of random delays
- Quantum Key Distribution Using Qudits Each Encoding One Bit Of Raw Key
- Round-Robin Differential Phase-Shift Quantum Key Distribution with Twisted Photons
- A fully passive transmitter for decoy-state quantum key distribution
- Experimental demonstration of quantum advantage for one-way communication complexity
- Practical round-robin differential-phase-shift quantum key distribution
- Detector-decoy quantum key distribution without monitoring signal disturbance
- Experimental comparison of various quantum key distribution protocols under reference frame rotation and fuctuation
- Robustness of reference-frame-independent quantum key distribution against the relative motion of the reference frames
- Security of differential quadrature phase shift quantum key distribution
- Practical decoy-state round-robin differential-phaseshift quantum key distribution
- Security of round-robin differential-phase-shift quantum key distribution protocol with correlated light sources
- A security proof of the round-robin differential phase shift quantum key distribution protocol based on the signal disturbance
- Refined security proof of the round-robin differential phase shift quantum key distribution and its improved performance in the finite-sized case
- Quantum secret aggregation utilizing a network of agents
- A Quantum Detectable Byzantine Agreement Protocol using only EPR pairs
- Equivalence of space and time-bins in DPS-QKD
- Manipulating photon coherence to enhance the security of practical quantum key distribution
- Trustworthiness of measurement devices in round-robin differential-phase-shift quantum key distribution
- An entanglement-based protocol for simultaneous reciprocal information exchange between 2 players
- High-dimensional Encoding in the Round-Robin Differential-Phase-Shift Protocol
- Ultrafast slow-light: Raman-induced delay of THz-bandwidth pulses
- One-to-Many Simultaneous Secure Quantum Information Transmission
- Round-robin differential phase-time-shifting protocol for quantum key distribution: theory and experiment
- A novel \& player scheme for Quantum Direct Communication
- Quantum-limited estimation of the frequency shift between two interfering photons by time sampling of their quantum beats
- Enhanced Hong-Ou-Mandel Manifolds and figures of merit for linear chains of identical micro-ring resonators
- Quantum Sampling for Optimistic Finite Key Rates in High Dimensional Quantum Cryptography
- Ultimate quantum sensitivity in the 3D relative localisation of two single-photon emitters via two-photon interference
- Security loophole in error verification in quantum key distribution
- Spectral compression of single-photon-level laser pulse