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Physics Seminar - Craig Chishom

Wednesday, 23 October 2019

Physics Department

Craig Chisholm

PhD Student

ICFO – The Institute of Photonic Sciences

Barcelona, Spain

"Coherently-Coupled Potassium BECs: Interaction Control and Density-Dependent Gauge Fields"

In potassium-39 the interactions between different spin states are highly tuneable due to a variety of Feshbach resonances. Through coherent coupling between two spin states of a Bose-Einstein condensate where the intra- and interspecies scattering lengths are all different, we demonstrate fast interaction control, which we use to perform interaction quenches leading to modulational instability. Furthermore, we demonstrate a density dependent gauge field by introducing further coupling between the spin and momentum of the atoms using optical Raman transitions.


WHEN: Wednesday 23rd October 2019
WHERE: Room 314, Science 3 Building
TIME: 3.00 pm–4.00 pm

All interested are welcome to attend

Light refreshments to follow in Common Room