Properties of strongly dipolar Bose gases beyond the Born approximation

Abstract

Strongly dipolar Bose gases can form liquid droplets stabilized by quantum fluctuations. In theoretical description of this phenomenon, low energy scattering amplitude is utilized as an effective potential. We show that for magnetic atoms corrections with respect to Born approximation arise, and derive modified pseudopotential using realistic interaction model. We discuss the resulting changes in collective mode frequencies and droplet stability diagram. Our results are relevant for recent experiments with erbium and dysprosium atoms.

slight corrections & extensions

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Cited by in corpus (4)

• Two-dimensional solitons and quantum droplets supported by competing self- and cross-interactions in spin-orbit-coupled condensates
• Striped states in a many-body system of tilted dipoles
• Quantum correlations in dipolar droplets: Time-dependent Hartree-Fock-Bogoliubov theory
• Leggett mode in a two-component Fermi gas with dipolar interactions