Experimental Demonstration of a Synthetic Lorentz Force by Using Radiation Pressure.
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.
Department of Physics, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia.|Institute of Physics, Bijenička c. 46, 10000 Zagreb, Croatia.
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Šantić
Department of Physics, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia.
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Dubček
Institute of Physics, Bijenička c. 46, 10000 Zagreb, Croatia.
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Aumiler
Department of Physics, University of Zagreb, Bijenička c. 32, 10000 Zagreb, Croatia.
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Buljan
Institute of Physics, Bijenička c. 46, 10000 Zagreb, Croatia.
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