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arXiv · 2112.10635

From superradiance to subradiance: exploring the many-body Dicke ladder

Antoine Glicenstein·Giovanni Ferioli·Antoine Browaeys·Igor Ferrier-Barbut
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Abstract

We report a time-resolved study of collective emission in dense ensembles of two-level atoms. We compare, on the same sample, the build-up 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 build up in time of subradiant states through the superradiant dynamics. This illustrates the dynamics of the many-body density matrix of superradiant ensembles of two-level atoms when departing from the ideal conditions of Dicke superradiance in which symmetry forbids the population of subradiant states.

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Antoine Glicenstein, Giovanni Ferioli, Antoine Browaeys, Igor Ferrier-Barbut. 2021-12-20. From superradiance to subradiance: exploring the many-body Dicke ladder. https://doi.org/10.1364/ol.451903

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