Collective Multi-mode Vacuum Rabi Splitting
W. Guerin, T. S. do Espirito Santo, P. Weiss, A. Cipris, J., Schachenmayer, R. Kaiser, R. Bachelard
TL;DR
This paper reports the experimental observation of collective multi-mode vacuum Rabi splitting in free space, demonstrating how atomic ensembles interact with a continuum of modes, with results explained by linear-dispersion theory.
Contribution
It provides the first experimental demonstration of multi-mode vacuum Rabi splitting in free space, expanding understanding beyond cavity-based systems.
Findings
Observation of normal mode splitting in free space
Coupling strength related to optical thickness of atomic cloud
Results match predictions of linear-dispersion theory
Abstract
We report the experimental observation of collective multi-mode vacuum Rabi splitting in free space. In contrast to optical cavities, the atoms couple to a continuum of modes, and the optical thickness of the cloud provides a measure of this coupling. The splitting, also referred as normal mode splitting, is monitored through the Rabi oscillations in the scattered intensity, and the results are fully explained by a linear-dispersion theory.
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