Coupling of magnetic and optomechanical structuring in cold atoms

We investigate experimentally and theoretically the collective coupling between atoms with multilevel ground state manifolds and an optical cavity mode. In our setup the cavity field optically pumps populations among the ground states. The ensuing dynamics can be conveniently described by means of an effective dynamical atom-cavity coupling strength that depends on the occupation of the individual states and their coupling strengths with the cavity mode. This leads to a dynamical backaction of the atomic populations on the atom-cavity coupling strength which results in a non-exponential relaxation dynamics. We experimentally observe this effect with laser-cooled 87 Rb atoms, for which we monitor the collective normal-mode splitting in real time. Our results show that the multilevel structure of electronic ground states can significantly alter the relaxation behavior in atom-cavity settings as compared to ensembles of two-level atoms.

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Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states

Suarez

Carollo²,

Lesanovsky³

et al. 2023

Phys. Rev. A

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Coupling of magnetic and optomechanical structuring in cold atoms

Cited by 1 publication

References 44 publications

Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states

Collective atom-cavity coupling and nonlinear dynamics with atoms with multilevel ground states

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