Sensitivity of spin-glass order to temperature changes
- 7 August 1993
- journal article
- Published by IOP Publishing in Journal of Physics A: General Physics
- Vol. 26 (15) , L641-L646
- https://doi.org/10.1088/0305-4470/26/15/005
Abstract
By a loop-expansion around Parisi's mean-field theory for an Ising spin-glass it is shown that the overlap of the magnetization patterns belonging to two different temperatures, T and T', vanishes to any order, (si)T(si)T=0, while the correlation overlap (sisj)T(sisj)T calculated to first loop order (and, for technical reasons, for dimensions d>8 only) is found to decay exponentially, with a characteristic length approximately (T-T')-1.Keywords
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