Josephson oscillations in binary mixtures of F=1 spinor BECs
Abstract
We analyze theoretically Josephson oscillations in a mixture of two Zeeman states of a spinor Bose-Einstein condensate in a double-well potential. We find that in the strongly polarized case, the less populated component exhibits a complex dynamics with an anti-Josephson behavior, i.e. oscillates in phase with the more populated one. In the balanced population case the Josephson oscillations unveal a dependence with the different spin collision channels. This effect could be used to experimentally measure the distinct scattering lengths entering in the description of a spinor condensate. Our numerical results are in close agreement with an analytical description of the binary mixture using a two mode model.
Cite
@article{arxiv.0902.3206,
title = {Josephson oscillations in binary mixtures of F=1 spinor BECs},
author = {B. Julia-Diaz and M. Guilleumas and M. Lewenstein and A. Polls and A. Sanpera},
journal= {arXiv preprint arXiv:0902.3206},
year = {2010}
}
Comments
Improved version. Accepted, Physical Review A