Collective dynamical resonance displacement from strongly driven cold atoms

• URL: http://arxiv.org/abs/2509.12106v1
• Date: Mon, 15 Sep 2025 16:33:07 GMT
• Title: Collective dynamical resonance displacement from strongly driven cold atoms
• Authors: Mateus A. F. Biscassi, Robin Kaiser, Mathilde Hugbart, Romain Bachelard,
• Abstract summary: We investigate Rabi oscillations from optically-thick cold clouds, driven by high-intensity coherent light.<n>A dynamical displacement from the atomic resonance is predicted, which can be detected through the collective Rabi oscillations of the atomic ensemble.<n>This modification may be particularly important for Ramsey spectroscopy, when strong pulses and optically dense samples are used.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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. This modification may be particularly important for Ramsey spectroscopy, when strong pulses and optically dense samples are used.

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