arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1012.5651cond-mat.stat-mech
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一类具有玻璃态动力学的自旋模型的静态精确解

Static Exact Solutions of a Spin Model Exhibiting Glassy Dynamics

Chiaki Yamaguchi

摘要:

Newman和Moore提出了一个具有玻璃态动力学性质的自旋模型。该模型不具有交换作用的随机性。我们提出了在自由边界条件下求该模型静态精确解的部分迹法,并给出了一些静态精确解。由比热和关联函数的精确解,我们得到,虽然温度为零时自旋的热平均为零,但转变温度为零。我们研究了基态。特别是在基态,部分结果与已有结果不一致。我们讨论分歧。

英文摘要:

A spin model which exhibits glassy dynamics has been proposed by Newman and Moore. This model possesses no randomness for exchange interactions. We propose partial trace methods for obtaining static exact solutions of this model under free boundary conditions, and show some static exact solutions. We obtain that, from the exact solutions of the specific heat and the correlation functions, the transition temperature is zero, although the thermal average of a spin is zero when the temperature is zero. We investigate the ground states. In the ground states, a part of the present results especially disagrees with the part of the previous results. We discuss the disagreements.

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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