Lattice Vibration of Ionic Crystal under Strong Gravitational Field

Abstract

Molecular dynamics simulation was performed to investigate unique crystalline states of ionic crystal at condition of a strong gravitational field (one million G). The simulation results showed that lattice vibration spectra of anion and cation along the gravity direction and the normal directions of the gravity were analyzed to confirm crystalline states of the ionic crystal. It is found that the shapes of spectra along the gravity are obviously different from the others along normal directions of the gravity. In addition, the peaks of spectra along the gravity were shifted toward higher frequency. It is shown that anisotropic lattice vibration spectra were induced by strong gravitational field, and it is insisted that the unique crystalline states and physical properties are induced by strong gravitational field.