Correlation Functions in a Corner-Shaped Ising Model
Douglas B. Abraham, F. T. Latrémolière
We obtain exact results at all temperatures for the two-point function of surface spins near the corner of a two-dimensional rectangular Ising ferromagnet; at the critical point, the functional form predicted by conformal theory is recovered. We are also able to calculate exactly a large class of correlation functions involving spins off the surface, and to interpret the results geometrically.
Physical Review Letters•Jun 17, 1996•5 citations