期刊
PHYSICAL REVIEW X
卷 12, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.12.031018
关键词
-
资金
- Austrian Science Fund (FWF) [Y1121]
- DFG/FWF Collaborative Research Centre [SFB 1225]
- Erwin Schroedinger fellowship [J3680]
- Marie Sklodowska-Curie Action IF program-Project-Name Phononic Quantum Sensors for Gravity (PhoQuS-G) [832250]
- EU [765267]
- Wiener Wissenschafts-und Technologiefonds (WWTF) [MA16-066]
- ESQ (Erwin Schroedinger Center for Quantum Science and Technology) [801110]
- Austrian Federal Ministry of Education, Science and Research (BMBWF)
- Marie Curie Actions (MSCA) [832250] Funding Source: Marie Curie Actions (MSCA)
- Austrian Science Fund (FWF) [Y1121] Funding Source: Austrian Science Fund (FWF)
This study reports on the observation of mechanical deformation of an ultracold cloud of 87Rb atoms due to the collective interaction between the atoms and a homogeneous light field. The collective light scattering induces a self-confining potential with nonlocal properties, attractive for both red and blue-detuned light fields, and a remarkably strong force dependent on the gradient of atomic density.
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 and multiple photon scattering. Here, we report on the observation of a mechanical deformation of a cloud of ultracold 87Rb atoms due to the collective interplay of the atoms and a homogenous light field. This collective light scattering results in a self-confining potential with interesting features: It exhibits nonlocal properties, is attractive for both red-and blue-detuned light fields, and induces a remarkably strong force that depends on the gradient of the atomic density. Our experimental observations are discussed in the framework of a theoretical model based on a local-field approach for the light scattered by the atomic cloud. Our study provides a new angle on light propagation in high-density ensembles and expands the range of tools available for tailoring interactions in ultracold atomic gases.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据