Work

Effective scattering and universal clusters of heteronuclear ultracold mixtures in quasi-low dimensions

Year: 2026

Type: article

Abstract: We study the effective s-wave scattering of two heteronuclear atoms harmonically confined in quasi-low dimensions, where the atoms have unequal masses and are subject to different confinement frequencies. The resulting effective scattering parameters in low dimensions, including scattering length and effective range, are derived as functions of three-dimensional scattering parameters and confinement strengths. Using realistic Li-K and Li-Cr mixtures as examples, we further compute the binding energies of universal $(1+N)$ clusters in quasi-low dimensions using the effective scattering parameters. Our findings suggest a promising pathway for practically observing universal clusters and their associated many-body phases in low-dimensional ultracold heteronuclear systems.

Source: Physical Review A

DOI: 10.1103/pvs9-zrqf

Authors: Tingting Shi, Xiaoling Cui

Institutions: Chinese Academy of Sciences, Beijing Academy of Quantum Information Sciences, Institute of Physics

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Natural Science Foundation of China, National Science and Technology Major Project

Awards: G3426435413, G3974951074, G7014496299, G7841475621