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arXiv 1809.02243cond-mat.stat-mech
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一维长程伊辛模型的核化

Nucleation for one-dimensional long-range Ising models

Aenout C. D. van Enter, Bruno Kimura, Wioletta Ruszel, Cristian Spitoni

摘要:

本文研究了一维长程伊辛模型的亚稳现象。我们证明了在适当的一般条件下,组态-1是唯一的亚稳态,并估计了平均退出时间。此外,我们用两个例子(指数和多项式衰减的相互作用)来说明该理论,并表明根据外部磁场的值,临界液滴可以是宏观的或介观的。

英文摘要:

In this note we study metastability phenomena for a class of long-range Ising models in one-dimension. We prove that, under suitable general conditions, the configuration -1 is the only metastable state and we estimate the mean exit time. Moreover, we illustrate the theory with two examples (exponentially and polynomially decaying interaction) and we show that the critical droplet can be macroscopic or mesoscopic, according to the value of the external magnetic field.

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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