Express the solution of the following problem
Problem- For the quantum mechanical Rigid Rotor model (a diatomic molecule with fixed bond length rotating freely in 3D space) considers the following:
Part 1- Are the motions or position of the particle in the ? direction dependent upon the motion in the ? direction?
Part 2- How likely is a real molecule to be a rigid rotor? Explain your reasoning.
I want expert's assistance to describe the quantum mechanical Rigid Rotor model.