Radio-frequency dressed atoms beyond the linear Zeeman effect

Sinuco-León, G and Garraway, B M (2012) Radio-frequency dressed atoms beyond the linear Zeeman effect. New Journal of Physics, 14. p. 123008. ISSN 1367-2630

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Abstract

We evaluate the impact that nonlinear Zeeman shifts have on resonant radio-frequency (RF) dressed traps in an atom-chip configuration. The degeneracy of the resonance between Zeeman levels is lifted at large intensities of a static field, modifying the spatial dependence of the atomic adiabatic potential. In this context, we find effects that are important for the next generation of atom chips with tight trapping: in particular, that the vibrational frequency of the atom trap is sensitive to the RF frequency and, depending on the sign of the Landé factor, can produce significantly weaker, or tighter trapping when compared to the linear regime of the Zeeman effect. We take 87 Rb as an example and find that it is possible for the trapping frequency on F = 1 to exceed that of the F = 2 hyperfine manifold.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Q Science > QC Physics > QC0170 Atomic physics. Constitution and properties of matter Including molecular physics, relativity, quantum theory, and solid state physics
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Depositing User: Barry Garraway
Date Deposited: 02 Jan 2013 10:07
Last Modified: 07 Mar 2017 04:54
URI: http://sro.sussex.ac.uk/id/eprint/43347

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