The laser damage induced by nano-absorbing centers generally results in a local high temperature and pressure environment, leading to denser phases and complex hydrodynamic processes. Here we parameterize the metal-organic framework force field to overcome the notorious unphysical agglomeration at small atomic distance in a Buckingham term. The structure and shock properties of amorphous silica are predicted well by the parameterized force field. By avoiding the Ewald summation of long-range coulomb interaction, the periodic boundary condition is not in such demand that the computational efficiency is greatly improved. The parameterized force field implicates a prospect for the atomic investigation of laser-induced hydrodynamic processes around the free surface or interface.

中文翻译：

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金属-有机骨架力场预测无定形二氧化硅的结构和冲击特性

由纳米吸收中心引起的激光损伤通常会导致局部高温高压环境，从而导致相致密和复杂的流体动力学过程。在这里，我们参数化金属有机框架力场，以克服白金汉项中臭名昭著的小原子距离处的非物理团聚。参数化的力场可以很好地预测无定形二氧化硅的结构和冲击性能。通过避免长程库仑相互作用的Ewald求和，不需要周期性边界条件，大大提高了计算效率。参数化的力场暗示了自由表面或界面周围激光诱导流体动力学过程的原子研究的前景。