Understanding randomness in universe

[shivakumar]

TL;DR

finding randomness in single particle universe and understand randomness in nature

how will randomness of particle be in one particle universe? how will it evolve with two, three or four particle based universe?

 

[PeroK]

TL;DR Summary: finding randomness in single particle universe and understand randomness in nature

how will randomness of particle be in one particle universe? how will it evolve with two, three or four particle based universe?

As far as QM is concerned, a universe with a small number of particles will evolve under the Hamiltonian associated with their mutual interaction. Without a macroscopic measuring device, the question of a measurement of the particles is meaningless. In that sense there is no randomness.

That is one variation of the so-called measurement problem.