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arXiv 2012.06787cond-mat.stat-mechcond-mat.dis-nn
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具有长程相互作用的伊辛模型的n邻域方法

n-vicinity method for Ising Model with long-range interaction

Inna Kaganowa, Boris Kryzhanovsky, Leonid Litinskii

摘要:

利用已有的n邻域方法,我们可以精确地计算出具有短程相互作用的伊辛模型的反温度临界值。我们推广的方法的情况下,在自旋系统的长程相互作用,并获得的自旋相互作用常数的逆温度的理论公式。我们的理论估计与计算机模拟的二维和三维伊辛模型的比较表明,更大的问题的尺寸更好的协议。

英文摘要:

The previously developed n-vicinity method allows us to calculate accurately critical values of inverse temperatures for Ising models with short-range interaction. We generalize the method to the case of long-range interactions in spin systems and obtain theoretical formulas for the inverse temperatures in terms of the spin interaction constants. The comparison of our theoretical estimates with computer simulations for the two- and three-dimensional Ising models shows that the larger the dimension of the problem the better their agreement.

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