Experimental Demonstration of a Synthetic Lorentz Force by Using Radiation Pressure

Scientific paper - Original scientific paper

• Author: Neven Šantić
• Author: Tena Dubček
• Author: Damir Aumiler
• Author: Hrvoje Buljan
• Author: Ticijana Ban
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

Synthetic magnetism in cold atomic gases opened the doors to many exciting novel physical systems and phenomena. Ubiquitous are the methods used for the creation of synthetic magnetic fields. They include rapidly rotating Bose-Einstein condensates employing the analogy between the Coriolis and the Lorentz force, and laser-atom interactions employing the analogy between the Berry phase and the Aharonov-Bohm phase. Interestingly, radiation pressure - being one of the most common forces induced by light - has not yet been used for synthetic magnetism. We experimentally demonstrate a synthetic Lorentz force, based on the radiation pressure and the Doppler effect, by observing the centre-of-mass motion of a cold atomic cloud. The force is perpendicular to the velocity of the cold atomic cloud, and zero for the cloud at rest. Our novel concept is straightforward to implement in a large volume, for a broad range of velocities, and can be extended to different geometries.

• Keywords (english): synthetic magnetism; cold atoms
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Scientific Reports
• Numbering: vol. 5, 13485
• e-ISSN: 2045-2322
• DOI: https://doi.org/10.1038/srep13485
• URN:NBN: urn:nbn:hr:217:506645
• Publication: 2015
• Document URL: https://www.nature.com/articles/srep13485
• Type of resource: Text
• Access conditions: Open access
• Public note: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0. Received: 13 April 2015. Accepted: 24 July 2015. Published online: 02 September 2015.
• Created on: 2020-01-18 18:46:42