Hojmann, S. A., & Asenjo, F. A. (2020). Quantum particles that behave as free classical particles. Phys. Rev. A, 102(5), 052211.
Abstract: The existence of nonvanishing Bohm potentials, in the MadelungBohm version of the Schrödinger equation, allows for the construction of particular solutions for states of quantum particles interacting with nontrivial external potentials that propagate as free classical particles. Such solutions are constructed with phases which satisfy the classical HamiltonJacobi for free particles and whose probability densities propagate with constant velocity, as free classical particles do.
