On exact mappings between fermionic Ising spin glass and classical spin glass models
Disordered Systems and Neural Networks
2013-05-29 v1
Abstract
We present in this paper exact analytical expressions for the thermodynamical properties and Green functions of a certain family of fermionic Ising spin-glass models with Hubbard interaction, by noticing that their Hamiltonian is a function of the number operator only. The thermodynamical properties are mapped to the classical Ghatak-Sherrington spin-glass model while the the Density of States (DoS) is related to its joint spin-field distribution. We discuss the presence of the pseudogap in the DoS with the help of this mapping.
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Cite
@article{arxiv.cond-mat/0506514,
title = {On exact mappings between fermionic Ising spin glass and classical spin glass models},
author = {Isaac Pérez Castillo and David Sherrington},
journal= {arXiv preprint arXiv:cond-mat/0506514},
year = {2013}
}
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6 pages