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Homogeneous attractive Bose-Einstein condensates with repulsive three-body interactions: the two-dimensional case

Dinh-Thi Nguyen

math-pharXiv:2608.29875

Abstract

We consider a homogeneous Bose gas composed of N identical bosons occupying an infinite two-dimensional space. This gas exhibits both an attractive two-body interaction and a repulsive three-body interaction. Via the intermediate Hartree theory, we rigorously derive the homogeneous cubic-quintic nonlinear Schroedinger functional as the mean-field limit of the model. Our investigation focuses on the system's behavior in relation to the two-body interaction.

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