Observation of Feshbach resonances in ions and atoms

Speaker: Thomas Walker (ALU Freiburg, Schätz group)

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Title: Observation of Feshbach resonances in ions and atoms

Speaker: GHE Fellow Thomas Walker (ALU Freiburg, Schätz group)

Date: May 25th 2022 @ 11am

Place: University of Basel (Klingelbergstrasse 82, 4^th floor, Seminarzimmer 4.1)

Abstract:

Feshbach resonances have been a tool for controlling interactions between neutral atoms for several decades, but micromotion-induced heating in rf traps has kept them out of reach in hybrid atom-ion experiments. Recently, however, the ultracold regime has been demonstrated in hybrid systems. In this talk, I report on the observation of magnetic Feshbach resonances between a ¹³⁸Ba+ ion and an ultracold cloud of ⁶Li in the few-partial-wave regime.