Journal
PHYSICAL REVIEW A
Volume 94, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.94.063638
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Funding
- Alexander von Humboldt Foundation
- (Polish) National Science Center [DEC-2012/04/A/ST2/00090, 2014/14/M/ST2/00015]
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Strongly dipolar Bose gases can form liquid droplets stabilized by quantum fluctuations. In a theoretical description of this phenomenon, the low-energy scattering amplitude is utilized as an effective potential. We show that for magnetic atoms, corrections with respect to the Born approximation arise, and we derive a modified pseudopotential using a realistic interaction model. We discuss the resulting changes in collective mode frequencies and droplet stability diagrams. Our results are relevant to recent experiments with erbium and dysprosium atoms.
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