Manipulating the orbital-angular-momentum correlation of entangled two-photon states in three-dimensional nonlinear photonic crystals
Chuan Xu, Songtao Huang, Qian Yu, Dunzhao Wei, Pengcheng Chen, Saiwei Nie, Yong Zhang, Min Xiao
Abstract
Three-dimensional (3D) nonlinear photonic crystal (NPC) has recently been realized in experiment, which provides a powerful platform for quantum-state engineering. Here, we propose a fork-grating 3D NPC scheme to manipulate orbital-angular-momentum (OAM) correlations of entangled two-photon pairs. The spiral spectra, bandwidths, and generation rates of counterpropagating and copropagating photon pairs are theoretically analyzed. Our results show that 3D NPC is of practical significance to generate high-dimensional OAM entanglement for quantum precision measurement, quantum computing, and quantum communication.
Topics & Concepts
PhysicsQuantum entanglementAngular momentumPhotonQuantum mechanicsNonlinear photonic crystalTotal angular momentum quantum numberPhotonicsAzimuthal quantum numberQuantumOrbital angular momentum of lightNonlinear systemNonlinear opticsOrbital Angular Momentum in OpticsPhotonic Crystals and ApplicationsPhotonic and Optical Devices