Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 54: Posters: Quantum Optics and Photonics IV
Q 54.44: Poster
Thursday, March 12, 2020, 16:30–18:30, Empore Lichthof
Generation of non-classical light states with an optical cavity — •Lukas Hartung1, Severin Daiss1, Bastian Hacker1,2, Stephan Welte1, Stephan Ritter1,3, Lin Li1,4, Emanuele Distante1, and Gerhard Rempe1 — 1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching, Germany — 2Present address: Max-Planck-Institut für die Physik des Lichts, Staudtstr. 2, 91058 Erlangen — 3Present address: TOPTICA Photonics AG, Lochhamer Schlag 19, 82166 Gräfelfing, Germany — 4Present address: School of Physics, Huazhong University of Science and Technology, Wuhan, China
Engineering quantum states of light is a long standing goal in quantum optics which finds significant applications in quantum communication and quantum information technologies. On this poster, we demonstrate the production of different non-classical light states. Our protocol is based on the interaction of an impinging laser pulse with a single atom trapped in a high-finesse optical resonator. As a result of this interaction, the light pulse gets entangled with the internal state of the atom. A suitable subsequent measurement on the atomic state can be used to engineer different output light states. This allows us to produce single photons out of coherent input light with arbitrary temporal mode profiles [1] as well as to generate optical cat states [2].
[1] Daiss, Welte, Hacker, Li and Rempe, Phys. Rev. Lett. 122, 133603 (2019)
[2] Hacker, Welte, Daiss, Shaukat, Ritter, Li and Rempe, Nat. Photon. 13, 110 (2019)