Three-fermion problems in optical lattices
Other Condensed Matter
2008-11-26 v2 Nuclear Theory
Abstract
We present exact results for the spectra of three fermionic atoms in a single well of an optical lattice. For the three lowest hyperfine states of Li6 atoms, we find a Borromean state across the region of the distinct pairwise Feshbach resonances. For K40 atoms, nearby Feshbach resonances are known for two of the pairs, and a bound three-body state develops towards the positive scattering-length side. In addition, we study the sensitivity of our results to atomic details. The predicted few-body phenomena can be realized in optical lattices in the limit of low tunneling.
Keywords
Cite
@article{arxiv.cond-mat/0606069,
title = {Three-fermion problems in optical lattices},
author = {T. Luu and A. Schwenk},
journal= {arXiv preprint arXiv:cond-mat/0606069},
year = {2008}
}
Comments
4 pages, 4 figures, minor changes, to appear in Phys. Rev. Lett