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arXiv 1201.3015cond-mat.stat-mech
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任意配位数z的自旋1 Ising系统的改进有效场论公式

An improved effective field theory formulation of spin-1 Ising systems with arbitrary coordination number z

Ümit Akıncı

摘要:

基于有效场论,对自旋为1的具有任意配位数z的最近邻相互作用的伊辛模型提出了一种改进的统一表述.该公式能够以一种有代表性的方式系统地计算所有的多自旋关联,以及系统中的单中心关联,并给出了比文献中其他工作更好的临界温度结果。只要系统只包含自旋-自旋相互作用的最近邻相互作用,该公式可以方便地应用于各种自旋为1的伊辛模型。

英文摘要:

An improved unified formulation based on the effective field theory is introduced for a spin-1 Ising model with nearest neighbor interactions with arbitrary coordination number z. Present formulation is capable of calculating all the multi-spin correlations systematically in a representative manner, as well as its single site counterparts in the system and gives much better results for critical temperature, in comparison with the other works in the literature. The formulation can be easily used to various kinds of spin-1 Ising models, as long as the system contains only the nearest neighbor interactions as spin-spin interactions.

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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