Igor Ferrier-Barbut

Abstract We report a time-resolved study of collective emission in dense ensembles of two-level atoms. We compare, on the same sample, the buildup of superradiance and subradiance from the ensemble when driven by a strong laser. This allows us to measure the dynamics of the population of superradiant and subradiant states as a function of time. In particular, we demonstrate the buildup in time of subradiant states through superradiant dynamics.

01 June 2020 • page 11 Ferrier-Barbut replies: I am grateful for Aurel Bulgac’s insight about three-body stabilized quantum droplets. I was aware of his work, but space constraints made it impossible for me to cite the broad swath of related literature. A tritium droplet would certainly be a peculiar object, though as an experimentalist I think making a Bose–Einstein condensate of tritium would be quite challenging. © 2020 American Institute of Physics.

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