Low energy dynamics of spinor condensates
Quantum Gases
2013-05-29 v1
Abstract
We present a derivation of the low energy Lagrangian governing the dynamics of the spin degrees of freedom in a spinor Bose condensate, for any phase in which the average magnetization vanishes. This includes all phases found within mean-field treatments except for the ferromagnet, for which the low energy dynamics has been discussed previously. The Lagrangian takes the form of a sigma model for the rotation matrix describing the local orientation of the spin state of the gas.
Keywords
Cite
@article{arxiv.0909.5620,
title = {Low energy dynamics of spinor condensates},
author = {Austen Lamacraft},
journal= {arXiv preprint arXiv:0909.5620},
year = {2013}
}