纳米尺度下热噪声诱导的非对称输运
Asymmetric transportation induced by thermal noise at the nanoscale
摘要：
基于一个简单的模型，我们从理论上表明，不对称运输是可能的纳米系统经历热噪声，而不存在外部波动。这一理论进展的关键是，对于纳米级系统，热涨落的相关长度变得非常长。这不同于宏观系统中的热噪声通常被视为白噪声。我们的观察并没有违反热力学第二定律，因为在纳米尺度下，需要额外的能量来保持不对称结构免受热波动的影响。
英文摘要：
Based on a simple model, we theoretically show that asymmetric transportation is possible in nanoscale systems experiencing thermal noise without the presence of external fluctuations. The key to this theoretical advance is that the correlation lengths of the thermal fluctuations become significantly long for nanoscale systems. This differs from macroscopic systems in which the thermal noises are usually treated as white noise. Our observation does not violate the second law of thermodynamics, since at nanoscale, extra energy is required to keep the asymmetric structure against thermal fluctuations.
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。
