Effect of light-assisted tunable interaction on the position response function of cold atoms

Optics Letters, Vol. 49, Issue 15, pp. 4377-4380 (2024) 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 in the presence of tunable lig...

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Bibliographic Details
Main Authors Misra, Anirban, Satpathi, Urbashi, Sinha, Supurna, Roy, Sanjukta, Chaudhuri, Saptarishi
Format Journal Article
LanguageEnglish
Published 26.03.2024
Subjects
Physics - Atomic Physics
Physics - Statistical Mechanics
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Summary:Optics Letters, Vol. 49, Issue 15, pp. 4377-4380 (2024) 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 in the presence of tunable light-assisted interactions. We subject the cold atoms to an intense laser light tuned near the photoassociation 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 generalised quantum Langevin approach to theoretically analyse the results of the experiments and find good agreement.
DOI:10.48550/arxiv.2403.17707