Anisotropic fluorescence signals retarded dipole-dipole interactions in a thermal atomic cloud
Abstract
Abstract We experimentally observe and theoretically explain anisotropic multiple quantum coherence signals in the fluorescence from dilute thermal potassium vapours, at room temperature and particle densities ∼ 10 8 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.
Fields of Study & Subjects
Quantum optics and atomic interactions
Spectroscopy and Quantum Chemical Studies
Spectroscopy and Laser Applications
Publication details
- Journal / source
- New Journal of Physics
- Publisher
- IOP Publishing
- Volume
- 28
- Issue
- 6
- Pages
- 063202–063202
- Publication date
- 11 May 2026
- Language
- EN