| Issue |
EPJ Web of Conferences
Volume 3, 2010
19th International IUPAP Conference on Few-Body Problems in Physics
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 5 | |
| Section | Few-Atom Systems | |
| DOI | https://doi.org/10.1051/epjconf/20100302004 | |
| Published online | 12 April 2010 | |
https://doi.org/10.1051/epjconf/20100302004
The Spectrum of Particles with Short-Ranged Interactions in a Harmonic Trap
1
Helmholtz-Institut für Strahlen- und Kernphysik (Theorie),
Nussallee 14-16, D-53115
Bonn
Germany
2
Bethe Center for Theoretical Physics, Universität Bonn,
Nussallee 12, D-53115
Bonn
Germany
a e-mail: toelle@hiskp.uni-bonn.de
The possibility to control short-ranged interactions of cold gases in optical traps by Feshbachresonances makes these systems ideal candidates to study universal scaling properties and Efimov physics. The spectrum of particles in a trap, idealised by a harmonic oscillator potential, in the zero range limit with 2- and 3-particle contact interactions is studied numerically. The Hamiltonian is regularised by restricting the oscillator basis and the coupling constants are tuned such that the ground state energies of the 2- and 3-particle sector are reproduced [1],[2]. Results for 2-, 3-, and 4 particle systems are presented and compared to exact results [3],[4].
© Owned by the authors, published by EDP Sciences, 2010
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