PhD students' seminar: Gaétan Hercé

PhD students' seminar given by Gaétan Hercé from the Quantum gases group, on 27 January 2022 at 1.15pm in the auditorium of the Institut d'Optique in Palaiseau, on the topic: "Momentum space correlations in the depletion of an interacting Bose-Einstein condensate " .

Abstract: "Correlations are a powerful tool to characterize a gas of N interacting quantum particles, and in particular a Bose-Einstein condensate. In this system, the interactions decrease the condensed fraction by promulgating atoms outside the condensate. At weak interactions, this non-condensed fraction appears as pairs of atoms with opposite momenta and thus has specific correlations in the momentum space. At stronger interactions, the microscopic state of the non-condensed fraction is predicted to change, and the correlations should also allow us to follow this evolution."