Effective Interactions in Quasi-One-Dimensional Dipolar Quantum Gases

2025/06/24 by Michał Zdziennicki, Mateusz Ślusarczyk, Zdziennicki, Michał +5
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Quantum Gases (cond-mat.quant-gas) #Quantum, superfluid, helium dynamics #Strong Light-Matter Interactions

paper · pdf · doi:10.48550/arxiv.2506.19618

openalex publication_date 2025/06/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Ultracold dipolar atoms and molecules provide a flexible quantum simulation platform for studying strongly interacting many-body systems. Determining microscopic Hamiltonian parameters of the simulator is crucial for it to be useful. We study effective interactions emerging in quasi-one-dimensional (q1D) dipolar quantum gases, revealing significant nonuniversal corrections to the commonly used 1D pseudopotential. We demonstrate that a full 3D treatment employing realistic interaction potentials is essential for describing the reduced-dimensional system. Our findings are particularly relevant to experiments probing excited states and nonequilibrium phenomena.

Citations

• Atomic physics on a 50 nm scale: Realization of a bilayer system of dipolar atoms
• Quantum droplets in a dipolar Bose gas at a dimensional crossover
• Instabilities and the roton spectrum of a quasi-1D Bose-Einstein condensed gas with dipole-dipole interactions

Related

• Dipolar quantum gases: from 3D to Low dimensions
• Diminished quantum depletion and correlated droplets in one-dimensional dipolar Bose gas
• Strongly interacting ultracold polar molecules
• Dipolar droplets of strongly interacting molecules
• Dipolar physics: a review of experiments with magnetic quantum gases