Calculating rotational diffusion constant in LAMMPS for a single particle

Dear users,

I am simulating a system using atom_style sphere for a single particle. As per my knowledge in this case I can account for rotation as well so what are the possible ways to calculate the rotational diffusion constant in LAMMPS and how to implement them?

Thanks in advance

Dear users,
I am simulating a system using atom_style sphere for a single particle. As per my knowledge in this case I can account for rotation as well so what are the possible ways to calculate the rotational diffusion constant in LAMMPS and how to implement them?

a single particle has no interactions with anything (outside its
periodic images, if they are close enough). there is not way to
compute a diffusion constant for that with *any* software.

axel.