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Published on: November 11, 2013
A compact and fast magnetic coil for the manipulation of quantum gases with Feshbach resonances
1Physikalisches Institut, University of Bonn, Wegelerstrasse 8, 53115 Bonn, Germany.
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 in the interaction strength, rapid (∼μs) 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 in the magnetic field up to 36 G in 3 µs. 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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