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arXiv 1008.4497cond-mat.dis-nn
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铁磁随机场随温标量Ginzburg-Landau模型中的无自旋玻璃相

No spin glass phase in ferromagnetic random-field random-temperature scalar Ginzburg-Landau model

Florent Krzakala, Federico Ricci-Tersenghi, David Sherrington, Lenka Zdeborová

摘要:

Krzakala,Ricci-Tersenghi和Zdeborova最近证明了任意晶格上具有非负相互作用和任意外磁场的随机场伊辛模型不存在静态自旋玻璃相。本文将这个证明推广到具有随机磁场和随机温度参数的软标量自旋伊辛模型:Ginzburg-Landau模型。我们这样做,证明了自旋玻璃的磁化率不能发散,除非铁磁磁化率。

英文摘要:

Krzakala, Ricci-Tersenghi and Zdeborova have shown recently that the random field Ising model with non-negative interactions and arbitrary external magnetic field on an arbitrary lattice does not have a static spin glass phase. In this paper we generalize the proof to a soft scalar spin version of the Ising model: the Ginzburg-Landau model with random magnetic field and random temperature-parameter. We do so by proving that the spin glass susceptibility cannot diverge unless the ferromagnetic susceptibility does.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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