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The Nearest and Next Nearest Neighbor Sherrington-Kirkpatrick Model | | D. S. Dean
; F. Ritort
; | | Date: |
17 Dec 2001 | | Subject: | Disordered Systems and Neural Networks; Statistical Mechanics | cond-mat.dis-nn cond-mat.stat-mech | | Affiliation: | U. Paul Sabatier, Toulouse, France) and F. Ritort (U. Barcelona, Spain | | Abstract: | The mean field theory of a spin glass with a specific form of nearest and next nearest neighbor interactions is investigated. Depending on the sign of the interaction matrix chosen we either find the continuous replica symmetry breaking seen in the Sherrington-Kirkpartick model or a one step solution similar to that found in structural glasses. Our results are confirmed by numerical simulations and the link between the type of spin-glass behavior and the density of eigenvalues of the interaction matrix is discussed. | | Source: | arXiv, cond-mat/0112316 | | Services: | Forum | Review | PDF | Favorites | |
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