Solid-state sources of quantum light based on epitaxial quantum dots are rapidly approaching ideal performance: on-demand supply of single photons or entangled photon pairs in a pure quantum state delivered with unity efficiency into a specified quantum channel at GHz rates. Such dots are typically grown using the conventional strain-mediated Stranski–Krastanow growth or, more recently, using...
A single ion coupled to an optical cavity is an efficient source of high-fidelity spin-photon entanglement. We will examine how to engineer this spin-photon entanglement in order to improve the efficiency and fidelity of entanglement between ions at separate nodes of a quantum network. I will present experimental results from a recent quantum-network demonstration on the University of...
