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arXiv · 2401.14946

Confinement-Induced Resonances in Spherical Shell Traps

C. Moritz Carmesin·Maxim A. Efremov
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Abstract

The energy spectrum and corresponding wave functions of two bosonic particles confined in a spherically symmetric shell trap and interacting via a three-dimensional zero-range potential are computed. Confinement-induced resonances, originating entirely from the strong coupling of the relative and center-of-mass motions of the two particles, are identified as avoided crossings for certain values of the shell radius. By working close to the found resonances, these results offer a new way to control the atom-atom interaction in an atomic gas by tuning only the geometrical parameters of the shell.

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C. Moritz Carmesin, Maxim A. Efremov. 2024-01-26. Confinement-Induced Resonances in Spherical Shell Traps. https://doi.org/10.1103/hfyx-r11q

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