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arXiv 2005.14540cond-mat.stat-mech
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简单液态金属的反问题--以液态铝的熔点为例

The Inverse Problem for Simple Liquid Metals a Study Case on Liquid Aluminum at Melting Point

Moustafa Sayem El-Daher

摘要:

为了检验求解液态金属反问题的可能性,即从实验结构因子获得有效对势,我们求解熔融温度下液态铝的修正超网链积分方程,从实验结构因子出发获得有效对势,并将其与从理论考虑获得的势进行比较。然后利用蒙特卡罗模拟中求解反问题得到的势函数进行验证,并将计算得到的铝液结构因子与实验结果进行了比较。我们表明,在这种情况下的反问题的解决方案给出了合理的定量结果,并再现了对势的一般特征和结构因子的结果是不远的实验测量。

英文摘要:

In an attempt to test the possibility of solving the inverse problem for liquid metals i.e. obtaining the effective pair potential from the experimental structure factor, we solve the modified Hypernetted-Chain Integral equation for liquid aluminum at melting temperature to obtain the effective pair potential starting from the experimental structure factor and compare it with the potential obtained from theoretical considerations. Then we use the potential obtained by solving the inverse problem in Monte Carlo simulation to test it, and the calculated structure factor of the liquid aluminum is compared with experiment. We show that the solution of the inverse problem in such cases gives reasonable quantitative results, and reproduces the general features of the pair potential and the results for the structure factor are not far from the experimental measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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