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Researchers have demonstrated that repulsive interactions between bosonic particles with electric dipole moments can suppress quantum collapse, enabling the formation of stable ground states previously thought impossible. This theoretical breakthrough, modeled using the Gross-Pitaevskii equation, challenges conventional expectations regarding how wave functions behave under strong attractive forces and rapidly expanding potentials. The findings offer new pathways for controlling quantum systems in three dimensions by leveraging interparticle repulsion to maintain localized bound states.

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Researchers Predict Stable Bosonic Ground State Despite Collapse Risk

Quantum ZeitgeistSeptember 4, 20264 min read

Quantum collapse, the tendency of wave functions to destabilise under attractive forces, can now be suppressed by interparticle repulsion exceeding a critical value of one quarter. This work reveals how repulsive interactions not only prevent this collapse but also establish ground states where none previously existed. Furthermore, it demonstrates that even rapidly expanding potentials can sustain localised bound states, challenging conventional expectations.

Repulsive interactions between particles possessing an electric dipole moment prevent quantum collapse caused by attractive forces. This suppression enables the creation of a stable ground state where previously none existed through modelling bosonic particle behaviour within three dimensions. Furthermore, the work reveals counterintuitive bound states even when potentials increase more rapidly than those found in harmonic oscillators. Repulsive forces between particles can prevent quantum collapse, a phenomenon…

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