Multiplet structure of Feshbach resonances in nonzero partial waves (6 pages)

By Christopher Ticknor, C. Regal, Deborah Jin, John L. Bohn. 2003

150 citations recorded by the source corpus.

We report a unique feature of magnetic-field Feshbach resonances in which atoms collide with nonzero orbital angular momentum. p-wave (l=1) Feshbach resonances are split into two components depending on the magnitude of the resonant state's projection of orbital angular momentum onto the field axis. This splitting is due to the magnetic dipole-dipole interaction between the atoms and it offers a means to tune anisotropic interactions of an ultracold gas of atoms. Furthermore this splitting in the p-wave Feshbach resonance has been experimentally observed and is reported. A parametrization of the p-wave resonance in terms of an effective-range expansion is given.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/8cf1cfb4e6af97d85b54716eaac3c73a0d41ca19

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Feshbach resonances in ultracold gases (2008, background): “At an even lower temperature and by monitoring the collision-induced heating rate, (Ticknor et al., 2004) found that this resonance is actually a doublet.”
Universal few-body physics and cluster formation (2017, methodology): “As was shown by (Ticknor et al., 2004) et al the doublet structure of a p-wave magnetic Feshbach resonance is associated with the different projections of the orbital angular momentum, i.e.|m| = 1 and m = 0 for ` = 1 and it occurs due to the magnetic dipole-dipole interactions.”
Fermi gases in one dimension: From Bethe ansatz to experiments (2013, background): “Therefore, in both the 2D and 3D cases, due to the coexistence of two collision channels and the breakdown of degeneracy between two collision channels (Ticknor et al., 2004), doublet structures of p-wave Feshbach resonance have been observed (Günter et al., 2005).”