Collective dispersion forces in the fluid state
Collective dispersion forces in the fluid state
复制标题
流体状态下的集体色散力
DOI：
10.1209/0295-5075/91/56006
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
A. C. Maggs
中科院分区：
文献类型：
--
作者：
H. Berthoumieux;A. C. Maggs
色散相互作用导致有效的多体相互作用，这超出了广泛用于材料建模的对势近似，导致Lifshitz理论的连续极限。我们引入量子色散相互作用的极化原子的模拟，将充分总结，非延迟Lifthitz理论在任意起伏的几何形状。我们使用适合于单个原子的偏振波动的热浴算法对量子自由度进行采样。我们演示了二元流体中相互作用的不对称筛选。
Dispersion interactions lead to effective many-body interactions which go beyond the approximation of pair potentials widely used in modeling of materials, leading in the continuum limit to Lifshitz theory. We introduce quantum dispersion interactions in simulations of polarizable atoms, incorporating the fully summed, non-retarded Lifthitz theory in arbitrary fluctuating geometries. We sample the quantum degrees of freedom using a heat bath algorithm adapted to the polarization fluctuations of individual atoms. We demonstrate asymmetric screening of interactions in a binary fluid.