Confinement Induced Resonances in Spherical Shell Traps

• URL: http://arxiv.org/abs/2401.14946v1
• Date: Fri, 26 Jan 2024 15:31:07 GMT
• Title: Confinement Induced Resonances in Spherical Shell Traps
• Authors: C. Moritz Carmesin and Maxim A. Efremov
• Abstract summary: We have computed exactly the energy spectrum and corresponding wave functions of two bosonic particles confined in a shell-shaped trap. By working close to the found CIRs, these results offer a new way to enhance the atom-atom interaction in the atomic gas.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We have computed exactly the energy spectrum and corresponding wave functions of two bosonic particles, which are confined in a spherically symmetric shell-shaped trap and interact with each other via a three-dimensional zero-range potential. Confinement induced resonances (CIRs), originating entirely from the strong coupling of the relative and center-of-mass motions of the two particles, are identified as avoided crossings at certain values of the shell radius. By working close to the found CIRs, these results offer a new way to enhance the atom-atom interaction in the atomic gas by tuning only the geometrical parameters of the shell.

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