Three-body interaction near a narrow two-body zero crossing
Quantum Gases
2019-10-15 v2
Abstract
We calculate the effective three-body force for bosons interacting with each other by a two-body potential tuned to a narrow zero crossing in any dimension. We use the standard two-channel model parametrized by the background atom-atom interaction strength, the amplitude of the open-channel to closed-channel coupling, and the atom-dimer interaction strength. The three-body force originates from the atom-dimer interaction, but it can be dramatically enhanced for narrow crossings, i.e., for small atom-dimer conversion amplitudes. This effect can be used to stabilize quasi-two-dimensional dipolar atoms and molecules.
Cite
@article{arxiv.1907.02236,
title = {Three-body interaction near a narrow two-body zero crossing},
author = {A. Pricoupenko and D. S. Petrov},
journal= {arXiv preprint arXiv:1907.02236},
year = {2019}
}
Comments
published version