Séminaire des doctorants : Lucas Lavoine

Séminaire des doctorants donné par Lucas Lavoine du groupe Gaz Quantiques, le 14 octobre 2021 à 13h15 dans l'auditorium de l'Institut d'Optique Graduate School à Palaiseau, sur le thème : " Beyond-mean-field effects in Rabi-coupled two-component Bose-Einstein condensate ".

Résumé : " In this seminar, I will talk about my PhD works about spin mixtures of potassium 39 Bose-Einstein condensate (BEC). Radio-frequency (RF) coupling between two Zeeman states allows to control the interactions from attractive to repulsive. It is also possible to cancel the mean-field interaction and create a system where the dynamics is governed by quantum fluctuations. Those fluctuations can be controlled by tuning the strength of the RF coupling. By measuring the size of our BEC after an expansion in a waveguide, we are able to directly measure this energy. "