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arXiv · 1001.1629

Nonlinear Faraday Rotation and Superposition-State Detection in Cold Atoms

Adam Wojciechowski·Eric Corsini·Jerzy Zachorowski·Wojciech Gawlik
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Abstract

We report on the first observation of nonlinear Faraday rotation with cold atoms at a temperature of ~100 uK. The observed nonlinear rotation of the light polarization plane is up to 0.1 rad over the 1 mm size atomic cloud in approximately 10 mG magnetic field. The nonlinearity of rotation results from long-lived coherence of ground-state Zeeman sublevels created by a near-resonant light. The method allows for creation, detection and control of atomic superposition states. It also allows applications for precision magnetometry with high spatial and temporal resolution.

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Adam Wojciechowski, Eric Corsini, Jerzy Zachorowski, Wojciech Gawlik. 2010-01-11. Nonlinear Faraday Rotation and Superposition-State Detection in Cold Atoms. https://doi.org/10.1103/physreva.81.053420

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