Breakdown of universality in few-boson systems

Abstract

We develop a series of resonant short-range two-boson potentials reproducing the same two-body low-energy observables and apply them in three- and four-body calculations. We demonstrate that the universal behavior predicted by effective field theory may be strongly violated and analyze the conditions for this phenomenon.

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Cited by in corpus (3)

• Comparing and contrasting nuclei and cold atomic gases
• Efimov physics in bosonic atom-trimer scattering
• Few-body physics of ultracold atoms and molecules with long-range interactions