Cancellation of nonlinear Zeeman shifts with light shifts

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Authors
Jensen, K.
Acosta, V. M.
Higbie, J. M.
Ledbetter, M. P.
Rochester, S. M.
Budker, D.
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Abstract
Description
Nonlinear Zeeman (NLZ) shifts arising from magnetic-field mixing of the two hyperfine ground-states in alkali atoms lead to splitting of magnetic-resonance lines. This is a major source of sensitivity degradation and the so-called "heading errors" of alkali-vapor atomic magnetometers operating in the geophysical field range (B approx. 0.2-0.7 G). Here, it is shown theoretically and experimentally that NLZ shifts can be effectively canceled by light shifts caused by a laser field of appropriate intensity, polarization and frequency, a technique that can be readily applied in practical situations.
Comment: 5 pages, 5 figures, to be published in PRA
Keywords
Physics - Atomic Physics
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