Effect of coordination number on the nonequilibrium critical point.
Effect of coordination number on the nonequilibrium critical point.
复制标题
配位数对非平衡临界点的影响。
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
P. Shukla
中科院分区：
文献类型：
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作者：
Diana Thongjaomayum;P. Shukla
我们研究了三角晶格上零温度随机场 Ising 模型的非平衡临界点，并将其与蜂窝、方形和简单立方晶格上的已知结果进行比较。我们认为，晶格的配位数而不是其维数在确定非平衡临界行为的普遍性类别中起着关键作用。这是在数值证据的背景下讨论的，零温随机场伊辛模型的平衡和非平衡临界点属于同一普遍性类别。这一奇怪结果的物理原理尚未完全被理解。
We study the nonequilibrium critical point of the zero-temperature random-field Ising model on a triangular lattice and compare it with known results on honeycomb, square, and simple cubic lattices. We suggest that the coordination number of the lattice rather than its dimension plays the key role in determining the universality class of the nonequilibrium critical behavior. This is discussed in the context of numerical evidence that equilibrium and nonequilibrium critical points of the zero-temperature random-field Ising model belong to the same universality class. The physics of this curious result is not fully understood.