Experimental high-dimensional quantum key distribution with orbital angular momentum
Zhongqi Sun, Yue Li, Haiqiang Ma
Abstract
The development and practical applications of quantum key distribution are limited by the channel capacity and high error rate during long-distance transmission. High-dimensional quantum key distribution protocols solve these problems effectively. In this paper, a high-dimensional quantum key distribution protocol based on polarization-orbit angular momentum is achieved, using a decoy state method to ensure the security of the protocol. The experimental results show that the high-dimensional quantum key distribution protocol improves the encoding efficiency and the upper bound of the quantum bit error rate.
Topics & Concepts
Quantum key distributionAngular momentumQuantum networkKey (lock)Computer scienceQuantum error correctionPhysicsQuantumTopology (electrical circuits)Quantum mechanicsQuantum informationMathematicsComputer securityCombinatoricsQuantum Information and CryptographyOrbital Angular Momentum in OpticsQuantum optics and atomic interactions