Instability of the Edwards-Anderson order parameter for an Ising spin glass
- 20 May 1980
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 13 (14) , 2715-2728
- https://doi.org/10.1088/0022-3719/13/14/013
Abstract
The authors make a diagrammatic expansion, without the use of the replica method and at the level of mean-field theory, for the Edwards-Anderson order parameter q, the order parameter susceptibility D, and the spin susceptibility C. The order parameter susceptibility D, which is defined as a positive quantity, is negative below the spin glass freezing temperature. This indicates the instability of the order parameter q.Keywords
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