Nanoscience Center, Department of Physics, University of Jyväskylä, FI-40014 Jyväskylä, Finland.
J Phys Condens Matter. 2011 Oct 5;23(39):395602. doi: 10.1088/0953-8984/23/39/395602. Epub 2011 Sep 15.
We apply classical molecular dynamics within the velocity Verlet algorithm to examine the formation dynamics of Wigner crystals in two-dimensional harmonic oscillators. Using a large ensemble of initial conditions as well as different freezing mechanisms, we obtain reliable information on the energies and probabilities of stable and metastable configurations, their formation dynamics, and their stability. Wigner-crystal configurations of up to 30 particles are presented and the dynamics of transition processes, e.g., intershell effects, are analyzed.
我们应用经典分子动力学中的速度-Verlet 算法来研究二维谐振子中维格纳晶体的形成动力学。通过大量的初始条件和不同的冻结机制，我们获得了关于稳定和亚稳定构型的能量和概率、它们的形成动力学及其稳定性的可靠信息。我们展示了多达 30 个粒子的维格纳-晶体构型，并分析了过渡过程的动力学，例如壳层间效应。
