Berlin 2018 – wissenschaftliches Programm

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TUT: Tutorials

TUT 4: Semiconductor Optics (joint session HL/TUT)

TUT 4.3: Tutorium

Sonntag, 11. März 2018, 17:40–18:25, H 1058

Semiconductor spin-photon interfaces for quantum repeaters and cluster state generation — •Ruth Oulton — QET Labs, School of Physics and Department of Electrical and Electronic Engineering, University of Bristol, Tyndall Avenue, Bristol, BS8 1FD, UK

In this tutorial I will describe how one may use the spin of carriers in semiconductor quantum dots to store quantum information, and transfer or entangle that information with the polarization state of a photon. With efficient photonic structure surrounding the quantum dot, one may efficiently entangle a photon input into the structure with the QD a spin-photon interface. This is the basic building block of many functionalities, including a means to achieve a quantum repeater in quantum communication networks, and to generate entire strings of photons, all of which are entangled with each other after interacting with a mediating spin.