Data publication: Electrical conductivity of warm dense hydrogen from ohm's law and time-dependent density functional theory

<p>Understanding the electrical conductivity of warm dense hydrogen is critical for both fundamental physics and applications in planetary science and inertial confinement fusion. We demonstrate how to calculate the electrical conductivity using the continuum form of Ohm&#39;s law, with the current density obtained from real-time time-dependent density functional theory. This approach simulates the dynamic response of hydrogen under warm dense matter conditions, with temperatures around 30000&thinsp;K and mass densities ranging from 0.02 to 0.98&thinsp;gcc. We systematically address finite-size errors in real-time time-dependent density functional theory, demonstrating that our calculations are both numerically feasible and reliable. Our results show good agreement with other approaches, highlighting the effectiveness of this method for modeling electronic transport properties from ambient to extreme conditions.</p>

掌握暖态致密氢的电导率对于理解基本物理规律以及在行星科学和惯性约束聚变领域的应用至关重要。本研究展示了如何运用欧姆定律的连续形式来计算电导率，其中电流密度由实时时间依赖密度泛函理论获得。该方法模拟了氢在暖态致密物质条件下的动态响应，温度约为30000K，质量密度范围在0.02至0.98gcc之间。我们系统地处理了实时时间依赖密度泛函理论中的有限尺寸误差，证实了我们的计算在数值上既可行又可靠。我们的结果与其他方法的良好一致性凸显了该方法在从常温至极端条件下模拟电子输运性质方面的有效性。