N-body Efimov states of trapped bosons
Atomic Physics
2009-07-17 v1 Quantum Gases
Quantum Physics
Abstract
We demonstrate the possibility of existence of meta-stable N-body Efimov states in trapped Bose systems with large scattering length. We calculate spectra of trapped systems of N=3,4,5,6, and 7 bosons using a stochastic variational method with a restricted correlated Gaussian basis. For each system the calculations reveal a series of Efimov states where the energy and the r.m.s. radius exhibit the characteristic exponential dependence upon the state number. We also estimate the contribution of these states to the recombination rate of Bose-Einstein condensates.
Keywords
Cite
@article{arxiv.0806.3839,
title = {N-body Efimov states of trapped bosons},
author = {M. Thøgersen and D. V. Fedorov and A. S. Jensen},
journal= {arXiv preprint arXiv:0806.3839},
year = {2009}
}