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Characterization of ion-trap-induced ac-magnetic fields

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arxiv 2405.18883 v1 pith:IVAVOHFT submitted 2024-05-29 quant-ph physics.atom-ph

classification quant-phphysics.atom-ph
keywords magneticfieldfieldsspectroscopytransitionsac-magneticapplicablebias
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The oscillating magnetic field produced by unbalanced currents in radio-frequency ion traps induces transition frequency shifts and sideband transitions that can be harmful to precision spectroscopy experiments. Here, we describe a methodology, based on two-photon spectroscopy, for determining both the strength and direction of rf-induced magnetic fields without modifying any DC magnetic bias field or changing any trap RF power. The technique is readily applicable to any trapped-ion experiment featuring narrow linewidth transitions.

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