Achieving the Neel state in an optical lattice
Statistical Mechanics
2014-11-18 v2
Abstract
We theoretically study the possibility of reaching the antiferromagnetic phase of the Hubbard model by starting from a normal gas of trapped fermionic atoms and adiabatically ramping up an optical lattice. Requirements on the initial temperature and the number of atoms are determined for a three dimensional square lattice by evaluating the Neel state entropy, taking into account fluctuations around the mean-field solution. We find that these fluctuations place important limitations on adiabatically reaching the Neel state.
Keywords
Cite
@article{arxiv.0711.3425,
title = {Achieving the Neel state in an optical lattice},
author = {Arnaud Koetsier and R. A. Duine and Immanuel Bloch and H. T. C. Stoof},
journal= {arXiv preprint arXiv:0711.3425},
year = {2014}
}
Comments
4 pages, 2 figures, RevTeX. Revised version incorporates minor corrections. Journal reference added