Erlangen 2018 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 39: Poster: Quantum Optics and Photonics II

Q 39.10: Poster

Dienstag, 6. März 2018, 16:15–18:15, Zelt Ost

Enhancing superradiance at a distance through motional states — •Martin Korzeczek and Daniel Braun — University Tübingen - Institute for theoretical Physics, Tübingen

Superradiance from atomic clouds is usually only observed if the atomic distances are much smaller or comparable to the wavelength of the atomic transition. Here, we investigate to what extent superradiance can be modified by engineering the motion of the atoms. For negligibly close atoms, the motion can only decrease the superradiance. We show that for atoms that are far away from each other (distances much larger than the wavelength) superradiance can be retained to a certain degree by carefully designing the motional states. We determine the upper bounds of the enhancement compared to the motionless states and give examples for motional states that enable such a relative enhancement for atoms at distances comparable to the wavelength of the emitted light.