Dressed potentials with coherence control for trapped atom interferometry

by Prof. Thomas Fernholz

University Of Nottingham

at Quantum optics seminar

Wed, 21 Apr 2021, 15:00
ZOOM

Abstract

ZOOM link: https://us02web.zoom.us/j/88535113048

ABSTRACT: On the quest to building a fully trapped atom interferometer, we investigate state-dependent trapping of ultra-cold rubidium atoms in radio-frequency dressed potentials. In this talk I will discuss trapping topologies for the implementation of a Sagnac interferometer that is sensitive to rotation. As the interferometer sequence is akin to the operation of an atomic clock, I will present our analysis of the radio-frequency dressed hyperfine spectrum. We identified suitable transition frequencies, clarified the compatibility of the required microwave polarisation with an atomchip trap, and experimentally investigated additional microwave dressing to reduce incoherent broadening in trapped thermal ensembles. I will also report on the current status of the atomchip-based interferometer setup.

Created on 18-04-2021 by Folman, Ron (folman)
Updaded on 18-04-2021 by Folman, Ron (folman)