BibTex format
@article{Barnett:2010:10.1103/PhysRevA.82.031602,
author = {Barnett, R and Sau, JD and Sarma, SD},
doi = {10.1103/PhysRevA.82.031602},
journal = {Physical Review A},
pages = {031602--031602},
title = {Antiferromagnetic spinor condensates are quantum rotors},
url = {http://dx.doi.org/10.1103/PhysRevA.82.031602},
volume = {82},
year = {2010}
}