一维欠阻尼朗之万动力学的非负微分迁移率:通过映射到边缘稳定振子的证明
Non-negative differential mobility of one-dimensional underdamped Langevin dynamics: Proof via mapping to a marginally stable oscillator
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中文总结 AI 辅助
本文通过将微分迁移率映射为边缘稳定振子的长时间平均位置,解析证明了一维欠阻尼朗之万动力学中微分迁移率的非负性。
中文摘要 AI 辅助
对于在有限温度下、一维空间中被恒定非保守力驱动穿越周期势的欠阻尼粒子,数值研究表明微分迁移率为非负。本文给出一个解析证明,该证明基于将微分迁移率表示为刚度受噪声影响的边缘稳定谐振子的长时间平均位置。
英文摘要
For an underdamped particle driven by a constant non-conservative force across a periodic potential in one spatial dimension at finite temperature, numerical studies have shown that the differential mobility is non-negative. Here, an analytical proof will be given that is based on expressing the differential mobility by the long-time mean position of a marginally stable harmonic oscillator subject to noise in its stiffness.
发表机构
- II. Institut für Theoretische Physik, Universität Stuttgart(斯图加特大学第二理论物理研究所)
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