Structure factors in warm dense matter

在这项研究中，我们打算探索高密度条件下物质的性质，温度约为5,000-100,000 K。这些条件与行星内部有关，更多地了解这类物质的微观结构和其他性质将有助于了解行星的结构和形成。我们将进行这项研究，主要是使用高功率激光，通过将数百万大气压的冲击波驱动到样品箔中，来创造这种“热致密物质”的条件。我们将使用强烈的短脉冲X射线来探测这种材料。通过观察散射X射线的分布，我们将能够推断出样品中离子的短程排列，从而推断出有关离子-离子势的信息。通过提取这一信息，原则上，我们将能够提取关于块体属性的进一步信息，例如电导率和热导率以及可压缩性。

In this research we intend to explore the properties of matter under conditions of high density at temperatures of about 5,000-100,000K. These conditions are relevant to the interiors of planets and understanding more about the microscopic structure and other properties of such matter will help in understanding the structure and formation of planets.We will conduct the research, principally, by using high power lasers to create such "warm dense matter" conditions by driving shock waves of millions of atmospheres pressure into sample foils. We will probe the material using intense short pulses of X-rays. By observing the distribution of scattered X-rays we will be able to infer the short range arrangements of the ions in the sample and thus infer information about the ion-ion potential. By extracting this information, we would, in principle, be able to extract further information about the bulk properties such as electrical and thermal conductivities and compressibility.