Jonathan Leach: High-dimensional Quantum Entanglement and Holographic Ghost Imaging

Abstract

Quantum entanglement plays a vital role in many quantum-information and communication tasks. Entangled states of higher-dimensional systems are of great interest owing to the extended possibilities they provide. I will discuss recent experiments on controlling and measuring high-dimensional two-photon entanglement and present some future challenges in this area. Specifically, I will discuss violations of generalized Bell inequalities, the EPR paradox for angles and orbital angular momentum, and an experimental demonstration of holographic ghost imaging.