Spin-driven spatial symmetry breaking of spinor condensates in a double-well
Quantum Gases
2012-11-29 v1
Abstract
The properties of an F=1 spinor Bose-Einstein condensate trapped in a double-well potential are discussed using both a mean-field two-mode approach and a simplified two-site Bose-Hubbard Hamiltonian. We focus in the region of phase space in which spin effects lead to a symmetry breaking of the system, favoring the spatial localization of the condensate in one well. To model this transition we derive, using perturbation theory, an effective Hamiltonian that describes N/2 spin singlets confined in a double-well potential.
Keywords
Cite
@article{arxiv.1209.1056,
title = {Spin-driven spatial symmetry breaking of spinor condensates in a double-well},
author = {Marina Melé-Messeguer and Simone Paganelli and Bruno Juliá-Díaz and Anna Sanpera and Artur Polls},
journal= {arXiv preprint arXiv:1209.1056},
year = {2012}
}
Comments
12 pages, 5 figures