Fano-like anti-resonances in strongly coupled binary Coulomb systems
Fano-like anti-resonances in strongly coupled binary Coulomb systems
复制标题
强耦合二元库仑系统中的类法诺反共振
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
Hanno Kaehlert
中科院分区：
文献类型：
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作者：
L. Silvestri;G. Kalman;Z. Donkó;P. Hartmann;Hanno Kaehlert
强耦合二元离子混合物的分子动力学（MD）模拟显示，在物种分辨的动态密度涨落谱中出现了尖锐的极小值。这种现象让人联想到发生在各种物理过程中的著名的Fano反共振。我们给出了一个理论分析，使用准定域电荷近似，并表明，在平衡谱中观察到的现象是一个新的表现形式的Fano机制，发生在系统的特征频率不同于传统的经典Fano频率。
Molecular-dynamics (MD) simulations of a strongly coupled binary ionic mixture have revealed the appearance of sharp minima in the species-resolved dynamical density fluctuation spectra. This phenomenon is reminiscent of the well-known Fano anti-resonance, occurring in various physical processes. We give a theoretical analysis using the quasi-localized charge approximation, and demonstrate that the observed phenomenon in the equilibrium spectrum is a novel manifestation of the Fano mechanism, that occurs at characteristic frequencies of the system different from the conventional classical Fano frequencies.