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arXiv 0811.4719cond-mat.dis-nncond-mat.stat-mech
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T=0随机场伊辛模型中的工作分布

Work distributions in the T=0 Random Field Ising Model

Xavier Illa, Josep Maria Huguet, Eduard Vives

摘要:

本文对T=0时三维随机场伊辛模型进行了数值研究。我们比较了单自旋翻转动力学亚稳态轨道上的功分布与平衡轨道上的内能变化分布。我们的目标是调查的克鲁克斯波动定理扩展到零温度的可能性时,而不是标准的系综统计,一个考虑所产生的淬火无序的系综。我们表明,一个简单的扩展Crooks失败接近无序诱导平衡相变由于工作和内能分布是非常不对称的事实。

英文摘要:

We perform a numerical study of the three-dimensional Random Field Ising Model at T=0. We compare work distributions along metastable trajectories obtained with the single-spin flip dynamics with the distribution of the internal energy change along equilibrium trajectories. The goal is to investigate the possibility of extending the Crooks fluctuation theorem to zero temperature when, instead of the standard ensemble statistics, one considers the ensemble generated by the quenched disorder. We show that a simple extension of Crooks fails close to the disordered induced equilibrium phase transition due to the fact that work and internal energy distributions are very asymmetric.

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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