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arXiv 2012.05594cond-mat.softcond-mat.stat-mech
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不均匀流体中的波动特征

Fluctuation profiles in inhomogeneous fluids

Universität Bayreuth(拜罗伊特大学)

Tobias Eckert, Nex C. X. Stuhlmüller, Florian Sammüller, Matthias Schmidt

AI总结:

研究不均匀经典多体系统平衡性质,通过局部能量、熵和粒子数波动特征进行热力学分析,揭示不同相互作用下波动差异。

摘要:

通过局部能量、熵和粒子数的波动特征描述不均匀经典多体系统的平衡性质,利用热力学微分密度轮廓或等效平均微观协方差获得局部波动。波动轮廓由函数生成器得出,并满足奥本·泽尼克关系。计算机模拟揭示了在具有伦敦-琼斯、刚球和高斯核心相互作用的受限流体中显著不同的波动特征。

英文摘要:

Three one-body profiles that correspond to local fluctuations in energy, in entropy, and in particle number are used to describe the equilibrium properties of inhomogeneous classical many-body systems. Local fluctuations are obtained from thermodynamic differentiation of the density profile or equivalently from average microscopic covariances. The fluctuation profiles follow from functional generators and they satisfy Ornstein-Zernike relations. Computer simulations reveal markedly different fluctuations in confined fluids with Lennard-Jones, hard sphere, and Gaussian core interactions.

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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