Progress of Theoretical Physics

Higher Order Calculations for d-Dimensional Lattice with d'-Dimensional Defect

R. Abe, K. Yamamoto, K. Ideura

Published Feb 1, 1983• 3 citations

Abstract

By means of 1/n expansion, the n-vector model in a d-dimensional lattice is studied where a d′-dimensional defect exists. Previous theories which dealt with the n→∞ limit are extended up to the order λ/n (λ: a parameter specifying the strength of defect). The pair correlation function in the defect space is discussed for the three-dimensional lattice. A critical exponent η// pertaining to the critical correlation is calculated up to the same order.

DOI: 10.1143/ptp.69.464

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