How to make narrow barriers for matter-wave bright soliton interferometry

by Prof. Simon Gardiner

Durham University
at Quantum optics seminar

Wed, 24 Nov 2021, 15:00
ZOOM only


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Bright solitons in atomic Bose--Einstein condensates are strong candidates for high precision matter-wave interferometry, as their inherent stability against dispersion supports long interrogation times. An analog to a beam splitter for these solitons is then a narrow potential barrier. A very narrow barrier is desirable for interferometric purposes, but in a typical realisation using a blue-detuned optical dipole potential, the width wavelength-limited. We investigate a soliton interferometry scheme using the geometric scalar potential experienced by atoms in a spatially dependent dark state, using two laser beams and a three-level atom in a Lambda configuration to overcome this limit. We propose a possible implementation and numerically probe the effects of deviations from the ideal configuration.

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Created on 21-11-2021 by Folman, Ron (folman)
Updaded on 21-11-2021 by Folman, Ron (folman)