期刊
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
卷 42, 期 5, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1751-8113/42/5/055001
关键词
-
资金
- Agence Nationale de la Recherche [JCJC06-144328]
- Galileo [17460QJ]
We present a systematic small-correlation expansion to solve the inverse Ising problem and find a set of couplings and fields corresponding to a given set of correlations and magnetizations. Couplings are calculated up to the third order in the correlations for generic magnetizations and to the seventh order in the case of zero magnetizations; in addition, we show how to sum some useful classes of diagrams exactly. The resulting expansion outperforms existing algorithms on the Sherrington-Kirkpatrick spin-glass model.
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