Phys. Rev. Lett. 76, 4813–4816 (1996)Correlation Functions in a Corner-Shaped Ising ModelReceived 27 June 1995; published in the issue dated 17 June 1996 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. © 1996 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.4813
DOI:
10.1103/PhysRevLett.76.4813
PACS:
75.10.Hk
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