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Manipulation of ultracold atoms in dressed adiabatic radio frequency potentials

I. Lesanovsky·S. Hofferberth·J. Schmiedmayer·P. Schmelcher
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Abstract

We explore properties of atoms whose magnetic hyperfine sub-levels are coupled by an external magnetic radio frequency (rf) field. We perform a thorough theoretical analysis of this driven system and present a number of systematic approximations which eventually give rise to dressed adiabatic radio frequency potentials. The predictions of this analytical investigation are compared to numerically exact results obtained by a wave packet propagation. We outline the versatility and flexibility of this new class of potentials and demonstrate their potential use to build atom optical elements such as double-wells, interferometers and ringtraps. Moreover, we perform simulations of interference experiments carried out in rf induced double-well potentials. We discuss how the nature of the atom-field coupling mechanism gives rise to a decrease of the interference contrast.

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I. Lesanovsky, S. Hofferberth, J. Schmiedmayer, P. Schmelcher. 2006-06-19. Manipulation of ultracold atoms in dressed adiabatic radio frequency potentials. https://doi.org/10.1103/physreva.74.033619

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