Poking at the Correspondence Principle with Derivative Couplings

Abstract

It is shown that quantum mechanical systems obtained from a heuristic path integral quantization of lagrangians of the form $L={\sum }_n\frac{1}{n!}{f}_n(q){\dot{q}}^n$ violate in general the correspondence principle, unless $L$ is not more than quadratic in $\dot{q}$. The field theoretic counterpart of this result and its consequence on models of interacting scalar and vector fields and particularly the electroweak interactions, are briefly discussed.

Comments: 14pages