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arXiv · 2509.12106

Collective resonance displacement in strongly driven cold atoms

Mateus A. F. Biscassi·Robin Kaiser·Mathilde Hugbart·Romain Bachelard
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Abstract

Cold atoms are promising platforms for metrology and quantum computation, yet their many-body dynamics remains largely unexplored. We here investigate Rabi oscillations from optically-thick cold clouds, driven by high-intensity coherent light. A dynamical displacement from the atomic resonance is predicted, which can be detected through the collective Rabi oscillations of the atomic ensemble. Different from linear-optics shifts, this dynamical displacement grows quadratically with the optical depth, yet it reduces with increasing pump power as dipole-dipole interactions are less effective.

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Mateus A. F. Biscassi, Robin Kaiser, Mathilde Hugbart, Romain Bachelard. 2025-09-15. Collective resonance displacement in strongly driven cold atoms. https://arxiv.org/abs/2509.12106

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