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

• URL: http://arxiv.org/abs/2112.10635v1
• Date: Mon, 20 Dec 2021 15:50:05 GMT
• Title: From superradiance to subradiance: exploring the many-body Dicke ladder
• Authors: Antoine Glicenstein, Giovanni Ferioli, Antoine Browaeys and Igor Ferrier-Barbut
• Abstract summary: We report a time-resolved study of collective emission in dense ensembles of two-level atoms. We compare the build-up of superradiance and subradiance from the ensemble when driven by a strong laser.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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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