Exactly solvable model for isospin S=3/2 fermionic atoms on an optical lattice

Details Exactly solvable model for isospin S=3/2 fermionic atoms on an optical lattice Exactly solvable model for isospin S=3/2 fermionic atoms on an optical lattice

2005-10-19

arxiv.org/abs/cond-mat/0510505v2

Phys.Rev.Lett. 96 (2006) 097205

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, no figures, replaced with the final version to appear in PRL

Scientific paper

10.1103/PhysRevLett.96.097205

We propose an exact solution of a model describing a low energy behavior of
cold isospin S=3/2 fermionic atoms on a one-dimensional optical lattice.
Depending on the band filling the effective field theory has a form of a
deformed Gross-Neveu model with either $O(7)\times \mathbb{Z}_2$ (half filling)
or $U(1)\times O(5)\times \mathbb{Z}_2$ symmetry.

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