摘要翻译:
本文在Boltzmann-Gibbs框架下分析了非均匀自旋系统的自旋波激发(磁子),并将结果与非扩展方法(Tsallis统计意义上的)联系起来。考虑到这两个框架之间的等价性,我们可以将熵参数q与非均匀系统交换积分分布的矩联系起来。它证实了熵参数与系统的微观性质有关的观点。
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英文标题:
《Spin-waves in a complex magnetic system: nonextensive approach》
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作者:
D. O. Soares-Pinto, M. S. Reis, R. S. Sarthour, I. S. Oliveira
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最新提交年份:
2007
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分类信息:
一级分类:Physics 物理学
二级分类:Statistical Mechanics 统计力学
分类描述:Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变,热力学,场论,非平衡现象,重整化群和标度,可积模型,湍流
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英文摘要:
In this paper we analyze the spin-wave excitations (magnons) of an inhomogeneous spin system within the Boltzmann-Gibbs framework and then connect the results with the nonextensive approach (in the sense of Tsallis statistics). Considering an equivalence between those two frameworks, we could connect the entropic parameter q with moments of the distribution of exchange integrals of the inhomogenous system. It ratifies the idea that the entropic parameter is connected to the microscopic properties of the system.
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PDF链接:
https://arxiv.org/pdf/706.2201