Effect of light-assisted tunable interaction on the position response function of cold atoms
Anirban Misra, Urbashi Satpathi, Supurna Sinha +2 more
The position response of a particle subjected to a perturbation is of general interest in physics. We study the modification of the position response function of an ensemble of cold atoms in a magneto-optical trap (MOT) in the presence of tunable light-assisted interactions. We subject the cold atoms to an intense laser light tuned near the photoassociation (PA) resonance and observe the position response of the atoms subjected to a sudden displacement. Surprisingly, we observe that the entire cold atomic cloud undergoes collective oscillations. We use a generalized quantum Langevin approach to theoretically analyze the results of the experiments and find good agreement.
arXiv:2403.17707•Optics Letters•Jul 9, 2024•2 citations