sponge.function.VelocityGenerator

查看源文件
class sponge.function.VelocityGenerator(temperature: float = 300, remove_translation: bool = True, seed: int = 0, seed2: int = 0, length_unit: str = None, energy_unit: str = None)[源代码]

根据温度产生系统中原子的速度。

参数:
  • temperature (float) - 温度。默认值: 300.0

  • remove_translation (bool) - 是否在基于周期性边界条件的情况下计算距离。默认值: True

  • seed (int) - 标准常态下的随机种子。默认值: 0

  • seed2 (int) - 标准常态下的随机种子2。默认值: 0

  • length_unit (str) - 长度单位。默认值: None

  • energy_unit (str) - 能量单位。默认值: None

样例:

>>> from sponge import UpdaterMD
>>> from sponge.function import VelocityGenerator
>>> vgen = VelocityGenerator(300)
>>> velocity = vgen(system.shape, system.atom_mass)
>>> opt = UpdaterMD(system=system,
...                 time_step=1e-3,
...                 velocity=velocity,
...                 integrator='velocity_verlet',
...                 temperature=300,
...                 thermostat='langevin')
set_temperature(temperature: float)[源代码]

设定温度。

参数:
  • temperature (float) - 温度值。