Crossover in the Efimov spectrum
Quantum Gases
2010-11-03 v3 Quantum Physics
Abstract
A filtering method is introduced for solving the zero-range three-boson problem. This scheme permits to solve the original Skorniakov Ter-Martirosian integral equation for an arbitrary large Ultra-Violet cut-off and to avoid the Thomas collapse of the three particles. The method is applied to a more general zero-range model including a finite background two-body scattering length and the effective range. A cross-over in the Efimov spectrum is found in such systems and a specific regime emerges where Efimov states are long-lived.
Cite
@article{arxiv.1006.2646,
title = {Crossover in the Efimov spectrum},
author = {Ludovic Pricoupenko},
journal= {arXiv preprint arXiv:1006.2646},
year = {2010}
}