Feynman showed that quantum mechanics could be formulated in terms of path integrals. This chapter discusses this approach to quantum mechanics in some detail since it provides the key to the path integral formulation of quantum field theory. It considers a system described by a single generalised coordinate with a conjugate momentum. The chapter shows that analogous objects in non-relativistic quantum mechanics are ground-state expectation values of products of operators.

Routledge eBooksJan 22, 20190 citations

Generalized Lagrangian-Path Representation of Non-Relativistic Quantum Mechanics

Massimo Tessarotto, Claudio Cremaschini

Foundations of PhysicsFeb 2, 201618 citations