Lower bounds on the ground-state entropy of the Potts antiferromagnet on slabs of the simple cubic lattice.
We calculate rigorous lower bounds for the ground-state degeneracy per site, W, of the q-state Potts antiferromagnet on slabs of the simple cubic lattice that are infinite in two directions and finite in the third and that thus interpolate between the square (sq) and simple cubic (sc) lattices. We give a comparison with large-q series expansions for the sq and sc lattices and also present numerical comparisons.
Shrock
Robert
R
CN Yang Institute for Theoretical Physics, State University of New York, Stony Brook, New York 11794, USA.
Xu
Yan
Y
D003198:Computer Simulation; D019277:Entropy; D008280:Magnetics; D008956:Models, Chemical