Feshbach resonances in 3He*-4He* mixtures

Abstract

We discuss the stability of homonuclear and heteronuclear mixtures of 3He and 4He atoms in the metastable 2^3S_1 state (He*) and predict positions and widths of Feshbach resonances by using the Asymptotic Bound-state Model (ABM). All calculations are performed without fit parameters, using \emph{ab-initio} calculations of molecular potentials. One promising very broad Feshbach resonance (ΔB=72.9^{+18.3}_{-19.3} mT) is found that allows for tuning of the inter-isotope scattering length.

12 pages, 7 figures

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Cited by in corpus (10)

• Cold and trapped metastable noble gases
• Strongly Interacting Isotopic Bose-Fermi Mixture Immersed in a Fermi Sea
• Asymptotic Bound-state Model for Feshbach Resonances
• Universal three-body parameter in ultracold 4He*
• Analyzing Feshbach resonances -- A ${}^6$Li -${}^{133}$Cs case study
• Fermi-Bose mixture in mixed dimensions
• Magnetic-field dependent trap loss of ultracold metastable helium
• Close-coupled model of Feshbach resonances in ultracold ${}^3$He* and ${}^4$He* atomic Collisions
• Measurement of the $s$-wave scattering length between metastable helium isotopes
• Long-range states in excited ultracold 3He*-4He* dimers