Freiburg 2019 – wissenschaftliches Programm
FM 53.5: Talk
Mittwoch, 25. September 2019, 15:15–15:30, 1010
Towards a single-photon source electrically driven by a single-electron pump — •Eric Reutter1, Julian Maisch2, Simone L. Portalupi2, Peter Michler2, and Jürgen Weis1 — 1Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany — 2Institut für Halbleiteroptik und Funktionelle Grenzflächen, IQST and SCoPE, University of Stuttgart, Allmandring 3, 70569 Stuttgart, Germany
Integrated photonic circuits step up to be a very promising candidate for future applications in quantum computing, quantum simulation, and quantum key distribution in telecommunication. In particular this requires the integration of devices for the generation of single photons on demand, optically passive and active components allowing photons to interact, and finally devices for the detection of single photons.
We investigate the feasibility of electrically pumping a quantum dot single-photon source by a single-electron pump. We will discuss fundamental requirements, restraints and limits of such a device operated under a large applied bias. Monte-Carlo rate equation simulations of the complex electrical circuit, incorporating all parts of the system, are presented to further understand the single-electron tunnelling dynamics and single-photon emission of such a system. From simulations and model, the constraining design features for such a device are determined. A prospect of a suitable material platform is given and discussed.