Erlangen 2018 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 62: Poster: Quantum Optics and Photonics V

Q 62.57: Poster

Donnerstag, 8. März 2018, 16:15–18:15, Redoutensaal

Towards chiral cavity quantum electrodynamics with ensembles of atoms around an optical nanofiber — •Aisling Johnson, Martin Blaha, Alexander Ulanov, Philipp Schneeweiss, and Arno Rauschenbeutel — TU Wien - Atominstitut, Stadionallee 2, 1020 Wien

Interfacing atoms with light propagating through an optical nanofiber is a promising method for the study of light-matter interaction. We are currently developing an experiment based on such a nanofiber to probe new regimes of cavity quantum electrodynamics (cQED). The tapered nanofiber, including the 500 nm thick waist, is connected to a fiber ring resonator. By creating a MOT cloud around the waist, we can couple an ensemble of atoms to the cavity field which propagates as an evanescent field in this region where the cross-section of the fiber is smaller than the wavelength of light. Notably, the polarization properties of light in the tapered fiber can lead to chiral, i.e propagation-direction dependent, light-matter interaction, which is expected to strongly affect the collective behavior of the atomic cloud in the cavity field. In general this setup should lend itself well to novel cQED experiments as well as quantum simulation of strongly coupled light and matter.