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arXiv · 2103.05273

A compact and fast magnetic coil for the interaction manipulation of quantum gases with Feshbach resonances

A. Kell·M. Link·M. Breyer·A. Hoffmann·M. Köhl·K. Gao
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Abstract

Cold atom experiments commonly use broad magnetic Feshbach resonances to manipulate the interaction between atoms. In order to induce quantum dynamics by a change of the interaction strength, rapid ($\sim\mu s$) magnetic field changes over several tens of Gauss are required. Here we present a compact design of a coil and its control circuit for a change of the magnetic field up to $36G$ in $3\mu s$. The setup comprises two concentric solenoids with minimal space requirements, which can be readily added to existing apparatuses. This design makes the observation of non-equilibrium physics with broad Feshbach resonances accessible.

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A. Kell, M. Link, M. Breyer, A. Hoffmann, M. Köhl, K. Gao. 2021-03-09. A compact and fast magnetic coil for the interaction manipulation of quantum gases with Feshbach resonances. https://doi.org/10.1063/5.0049518

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