Four-body physics in low-dimensional bosons with three-body interaction
V. Polkanov, O. Hryhorchak, and V. Pastukhov
TL;DR
This paper introduces a two-channel model for low-dimensional bosons with three-body interactions, exploring Efimov-like effects, four-body bound states, and atom-trimer scattering in one dimension.
Contribution
It presents a novel two-channel model that incorporates finite-range three-body effects and analyzes four-body phenomena in low-dimensional bosonic systems.
Findings
Efimov-like effects in fractal-dimension systems
Unique four-body bound states in 1D
Low-energy atom-trimer scattering characteristics
Abstract
The two-channel model for bosons with the three-body interaction is proposed. Similar to the Hamiltonian describing narrow Feshbach resonance in the two-body sector, our model includes the finite-range effects of the three-body potential and is well-defined in the ultraviolet (UV). A detailed exploration of the Efimov-like effect in the fractal-dimension system of four bosons is carried out. Peculiarities of the four-body bound states and the low-energy atom-trimer scattering in one dimension are revealed.
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