Light-Mediated Collective Atomic Motion in an Optical Lattice Coupled to a Membrane

Vochezer, Aline and Kampschulte, Tobias and Hammerer, Klemens and Treutlein, Philipp. (2018) Light-Mediated Collective Atomic Motion in an Optical Lattice Coupled to a Membrane. Physical review letters, 120 (7).

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/68433/

Downloads: Statistics Overview


We observe effects of collective atomic motion in a one-dimensional optical lattice coupled to an optomechanical system. In this hybrid atom-optomechanical system, the lattice light generates a coupling between the lattice atoms as well as between atoms and a micromechanical membrane oscillator. For large atom numbers we observe an instability in the coupled system, resulting in large-amplitude atom-membrane oscillations. We show that this behavior can be explained by light-mediated collective atomic motion in the lattice, which arises for large atom numbers, small atom-light detunings, and asymmetric pumping of the lattice, in agreement with previous theoretical work. The model connects the optomechanical instability to a phase delay in the global atomic backaction onto the lattice light, which we observe in a direct measurement.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimentelle Nanophysik (Treutlein)
UniBasel Contributors:Treutlein, Philipp and Vochezer, Aline and Kampschulte, Tobias
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
Note:Publication type according to Uni Basel Research Database: Journal article -- Additional publication or translation in: https://arxiv.org/abs/1705.10098
Identification Number:
Last Modified:11 Apr 2019 18:39
Deposited On:11 Apr 2019 18:39

Repository Staff Only: item control page