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Anisotropic fluorescence signals retarded dipole-dipole interactions in a thermal atomic cloud

Year: 2025

Type: preprint

Abstract: We experimentally observe and theoretically explain anisotropic multiple quantum coherence signals in the fluorescence from dilute thermal potassium vapors, at room temperature and particle densities $\sim 10^8\ \rm{cm}^{-3}$. We identify the retarded part of the geometrically fully resolved inter-atomic, resonant dipole-dipole interaction as the crucial ingredient to theoretically reproduce all qualitative features of the experimental spectra.

Source: arXiv (Cornell University)

Authors: Shatokhin, Vyacheslav, Landmesser, Friedemann, Niebuhr, Mario, Stienkemeier, Frank, Buchleitner, Andreas, Bruder, Lukas

Language: English

Topic: Quantum optics and atomic interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7075993781

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