Dipolar Relaxation in an ultra-cold Gas of magnetically trapped chromium atoms

Abstract

We have investigated both theoretically and experimentally dipolar relaxation in a gas of magnetically trapped chromium atoms. We have found that the large magnetic moment of 6 ${\mu }_B$ results in an event rate coefficient for dipolar relaxation processes of up to $3.2\cdot 10^{-11}$ cm${}^3$s${}^{-1}$ at a magnetic field of 44 G. We present a theoretical model based on pure dipolar coupling, which predicts dipolar relaxation rates in agreement with our experimental observations. This very general approach can be applied to a large variety of dipolar gases.

9 pages, 9 figures

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• Observation of low-field Fano-Feshbach resonances in ultracold gases of dysprosium
• Dipolar Relaxation in an ultra-cold Gas of magnetically trapped chromium atoms
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• Quantum correlations and entanglement in far-from-equilibrium spin systems
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• Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms
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• A comprehensive review on developments of synthetic dimensions
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• Fermionic suppression of dipolar relaxation: Observation of universal inelastic dipolar scattering
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• Two-body interactions and decay of three-level Rydberg-dressed atoms
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