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Effect of the block-spin configuration on the location of βcin two-dimensional Ising modelsin two-dimensional Ising models

✍ Scribed by Mohamed Ould-Lemrabott

Publisher
Springer
Year
1997
Tongue
English
Weight
272 KB
Volume
86
Category
Article
ISSN
0022-4715

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On the magnetisation of the ground state
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✍ Francisco Barahona; Adolfo Casari 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 414 KB

We study the configurations of minimum energy among those with zero magnetisation in Ising spin glasses. We formulate that problem as a graph partitioning problem and we give an algorithm for it. We determine the concentration of negative interactions such that those configurations give a ground sta