Adaptive Real Time Selection for Quantum Key Distribution in Lossy and Turbulent Free-Space Channels
arXiv:1404.1272 · doi:10.1103/PhysRevA.91.042320
Abstract
Quantum Key Distribution (QKD) allows to share random keys between two users with unconditional security: the key is usually generated by exchanging a stream of photons. The long-term vision of QKD is represented by a quantum network, implemented by fiber and free-space links involving ground and/or satellites stations. The presence of the atmospheric turbulence represents an obstacle for free-space quantum communications, due to the increase of optical losses. Here we introduce a method to exploit the atmospheric turbulence as a resource for QKD. An Adaptive Real Time Selection (ARTS) technique at the receiver allows to take advantage of the fluctuating transmissivity of the channel, giving rise to an increase of the secure key rate.
Published version
References in corpus (8)
- Free-space quantum key distribution by rotation-invariant twisted photons
- High-fidelity transmission of entanglement over a high-loss freespace channel
- Quantum light in the turbulent atmosphere
- Distribution of squeezed states through an atmospheric channel
- Feasibility of free space quantum key distribution with coherent polarization states
- Impact of turbulence in long range quantum and classical communications
- Studying Free-Space Transmission Statistics and Improving Free-Space QKD in the Turbulent Atmosphere
- Experimental quantum key distribution with finite-key security analysis for noisy channels
Cited by in corpus (27)
- Progress in satellite quantum key distribution
- A Survey on Quantum Channel Capacities
- Advances in Space Quantum Communications
- Satellite-Based Continuous-Variable Quantum Communications: State-of-the-Art and a Predictive Outlook
- Full daylight quantum-key-distribution at 1550 nm enabled by integrated silicon photonics
- Simple Quantum Key Distribution with qubit-based synchronization and a self-compensating polarization encoder
- Free-space quantum links under diverse weather conditions
- Fast and simple qubit-based synchronization for quantum key distribution
- Satellite-based links for Quantum Key Distribution: beam effects and weather dependence
- The Deep Space Quantum Link: Prospective Fundamental Physics Experiments using Long-Baseline Quantum Optics
- Free-space optical channel estimation for physical layer security
- Pre-fixed Threshold Real Time Selection Method in Free-space Quantum Key Distribution
- Composable finite-size effects in free-space CV-QKD systems
- Optimal design and performance evaluation of free-space Quantum Key Distribution systems
- Quantum Key Distribution with a Hand-held Sender Unit
- Analysis of satellite-to-ground quantum key distribution with adaptive optics
- qkdSim: An experimenter's simulation toolkit for QKD with imperfections, and its performance analysis with a demonstration of the B92 protocol using heralded photon
- Quantum memories for fundamental science in space
- Sub-ns timing accuracy for satellite quantum communications
- Experimental demonstration of the DPTS QKD protocol over a 170 km fiber link
- Cross-encoded quantum key distribution exploiting time-bin and polarization states with qubit-based synchronization
- Experimental decoy state BB84 quantum key distribution through a turbulent channel
- Characterization of free-space quantum channels
- Dynamic attenuation scheme in measurement-device-independent quantum key distribution over turbulent channels
- Time correlations in atmospheric quantum channels
- Adaptive Techniques in Practical Quantum Key Distribution
- Qubit-based clock synchronization for QKD systems using a Bayesian approach