温、热稠密混合物的积分方程模型
An integral equation model for warm and hot dense mixtures
摘要：
在Starrett和Saumon [Phys.Rev.E87，013104（2013）]中，描述并验证了用于计算温热致密物质的电子和离子结构的模型。在该模型中，使用基于密度泛函理论的平均原子（AA）模型来确定等离子体中的一个“原子”的电子结构，并且通过将AA模型耦合到控制流体结构的积分方程来确定离子结构。该模型仅适用于具有一个核物种的等离子体。在这里，我们将其扩展到处理等离子体与许多核物种，即混合物，并将其应用到碳-氢混合物相关的惯性约束聚变实验。无轨道和Kohn-Sham分子动力学模拟的预测的电子和离子结构的比较揭示了良好的协议，化学键是不显着的。
英文摘要：
In Starrett and Saumon [Phys. Rev. E 87, 013104 (2013)] a model for the calculation of electronic and ionic structures of warm and hot dense matter was described and validated. In that model the electronic structure of one "atom" in a plasma is determined using a density functional theory based average-atom (AA) model, and the ionic structure is determined by coupling the AA model to integral equations governing the fluid structure. That model was for plasmas with one nuclear species only. Here we extend it to treat plasmas with many nuclear species, i.e. mixtures, and apply it to a carbon-hydrogen mixture relevant to inertial confinement fusion experiments. Comparison of the predicted electronic and ionic structures with orbital-free and Kohn-Sham molecular dynamics simulations reveals excellent agreement wherever chemical bonding is not significant.
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