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Statistical mechanics of Ising chains in random magnetic fields

DOI to cite this document:
Morgenstern, Ingo ; Binder, Kurt ; Baumgärtner, Arthur
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Date of publication of this fulltext: 09 Aug 2010 12:29


For a model of heteropolymer ’’melting,’’ we study an Ising model where the field on each spin can randomly take one of the two values H±h. Several numerical methods for the calculation of the free energy and its derivatives are developed, making use of a transfer matrix representation of the partition function and mathematical theorems on random matrices due to Bellman. Monte Carlo computations ...


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