> On Mar 10, 2023, at 10:01 PM, Kaustav Chakraborty <kaustav.chakra...@gmail.com
> 'default_d (float) – Default maximum size of displacement trial moves'
> does that mean every trial move of each particle in the system is taken from uniformly distributed random numbers from 0 to this particular 'maximum size of displacement' ?
No. The trial move is from [0, 0, 0] to [x, y, z], with x^2 + y^2 + z^2 <= d.
Per the documentation, the trial displacement move is generated with "a random vector uniformly distributed within the ball of radius 1", scaled by d (the maximum displacement).
It is not the magnitude of the vector (the displacement) that is uniformly distributed; it is the cartesian coordinate that is uniformly distributed.
Any symmetric probability density would be valid. This uniform density was found to be simple and effective in a large variety of systems.