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

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 نشر من قبل Carlos Alberto
 تاريخ النشر 2008
  مجال البحث فيزياء
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We investigate the inverse freezing in the fermionic Ising spin-glass (FISG) model in a transverse field $Gamma$. 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 $Gamma$. As consequence, the boundary phase is modified and, therefore, the reentrance associated with the inverse freezing is modified too.

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