2024/01/26 by C. Moritz Carmesin, Maxim A. Efremov, Carmesin, C. Moritz +1
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Advanced Frequency and Time Standards #Quantum optics and atomic interactions
paper · pdf · doi:10.48550/arxiv.2401.14946
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.