氦和氢氦等离子体热力学和氘冲击Hugoniot的路径积分Monte Carlo计算
Path integral Monte Carlo calculations of helium and hydrogen-helium plasma thermodynamics and of the deuterium shock Hugoniot
摘要：
本文采用直接路径积分蒙特卡罗方法计算了不同氦质量分数的氢氦等离子体的热力学性质。为了避免非物理近似，我们使用密度矩阵的路径积分表示。我们特别注意弱耦合和简并区域，并将模拟结果与基于化学图像的模型进行比较。在计算氘等容线的基础上，进一步计算了氘的冲击Hugoniot。我们分析我们的结果与最近的实验和计算数据的氘Hugoniot。
英文摘要：
In this work we calculate the thermodynamic properties of hydrogen-helium plasmas with different mass fractions of helium by the direct path integral Monte Carlo method. To avoid unphysical approximations we use the path integral representation of the density matrix. We pay special attention to the region of weak coupling and degeneracy and compare the results of simulation with a model based on the chemical picture. Further with the help of calculated deuterium isochors we compute the shock Hugoniot of deuterium. We analyze our results in comparison with recent experimental and calculated data on the deuterium Hugoniot.
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