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arXiv 1609.01980cond-mat.soft
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分子动力学中基于算法猝灭振铃模式的快速平衡

Rapid Equilibration by algorithmic quenching the ringing mode in molecular dynamics

G. J. Ackland

摘要:

长波长声学声子通常与晶体系统中的其他振动模式弱耦合。这在分子动力学计算中是特别成问题的,其中系统尺寸尺度的振动通常在初始时被激发。这些振动的平衡时间取决于与其他模式的耦合强度,因此通常非常长。一个非常简单的确定性的方法,避免了使用,提出了消除这个问题。

英文摘要:

Long wavelength acoustic phonons are normally weakly coupled to other vibrational modes in a crystalline system. This is particularly problematic in molecular dynamics calculations where vibrations at the system size scale are typically excited at initiation. The equilibration time for these vibrations depends on the strength of coupling to other modes, so is typically very long. A very simple deterministic method which avoids the use of is presented which removes this problem.

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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