Quantum Mechanics as a Classical Field Theory

Details Quantum Mechanics as a Classical Field Theory Quantum Mechanics as a Classical Field Theory

1999-05-10

arxiv.org/abs/quant-ph/9905032v1

Physics

Quantum Physics

14 pages. revtex

Scientific paper

The formalism of quantum mechanics is presented in a way that its interpretation as a classical field theory is emphasized. Two coupled real fields are defined with given equations of motion. Densities and currents associated to the fields are found with their corresponding conserved quantities. The behavior of these quantities under a galilean transformation suggest the association of the fields with a quantum mechanical free particle. An external potential is introduced in the Lagrange formalism. The description is equivalent to the conventional Schr\"odinger equation treatment of a particle. We discuss the attempts to build an interpretation of quantum mechanics based on this scheme. The fields become the primary onthology of the theory and the particles appear as emergent properties of the fields. These interpretations face serious problems for systems with many degrees of freedom.

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