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October 2, 2025Open Access

Effective Interactions in Quasi-One-Dimensional Dipolar Quantum Gases

Key Points

Nonuniversal corrections alter the perception of effective interactions in quasi-one-dimensional systems.
Using realistic 3D interaction potentials is essential for accurate modeling of dipolar quantum gases.
Findings provide insights into experiments related to excited states in quantum gases.
Objective focuses on understanding key Hamiltonian parameters critical for quantum simulation.

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.

Effective Interactions in Quasi-One-Dimensional Dipolar Quantum Gases

Key Points

Abstract

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