Observation of Light-Induced Dipole-Dipole Forces in Ultracold Atomic Gases
نویسندگان
چکیده
Light-matter interaction is well understood on the single-atom level and routinely used to manipulate atomic gases. However, in denser ensembles, collective effects emerge that are caused by light-induced dipole-dipole interactions multiple photon scattering. Here, we report observation of a mechanical deformation cloud ultracold Rb87 atoms due interplay homogenous light field. This scattering results self-confining potential with interesting features: It exhibits nonlocal properties, attractive for both red- blue-detuned fields, induces remarkably strong force depends gradient density. Our experimental observations discussed framework theoretical model based local-field approach scattered cloud. study provides new angle propagation high-density ensembles expands range tools available tailoring gases.2 MoreReceived 2 February 2022Accepted 21 June 2022DOI:https://doi.org/10.1103/PhysRevX.12.031018Published American Physical Society under terms Creative Commons Attribution 4.0 International license. Further distribution this work must maintain attribution author(s) published article’s title, journal citation, DOI.Published SocietyPhysics Subject Headings (PhySH)Research AreasAtom opticsAtomic & molecular processes external fieldsBose-Einstein condensatesCollective quantum opticsEffects coherence propagationLight-matter interactionLong-range interactionsMechanical material mediaNonlinear optical susceptibilityNonlinear opticsQuantum description light-matter interactionQuantum opticsAtomic, Molecular Optical
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ژورنال
عنوان ژورنال: Physical Review X
سال: 2022
ISSN: ['2160-3308']
DOI: https://doi.org/10.1103/physrevx.12.031018