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arXiv · 0803.2687

Role of the transverse field in inverse freezing in the fermionic Ising spin-glass model

S. G. Magalhaes·C. V. Morais·F. M. Zimmer
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Abstract

We investigate the inverse freezing in the fermionic Ising spin-glass (FISG) model in a transverse field $Γ$. The grand canonical potential is calculated in the static approximation, replica symmetry and one-step replica symmetry breaking Parisi scheme. It is argued that the average occupation per site $n$ is strongly affected by $Γ$. As consequence, the boundary phase is modified and, therefore, the reentrance associated with the inverse freezing is modified too.

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S. G. Magalhaes, C. V. Morais, F. M. Zimmer. 2008-04-03. Role of the transverse field in inverse freezing in the fermionic Ising spin-glass model. https://doi.org/10.1103/physrevb.77.134422

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