2000 character limit reached
Dirac's formalism for time-dependent Hamiltonian systems in the extended phase space (1701.07120v3)
Published 25 Jan 2017 in math-ph, math.MP, physics.class-ph, and quant-ph
Abstract: The Dirac's formalism for constrained systems is applied to the analysis of time-dependent Hamiltonians in the extended phase space. We show that the Lewis invariant is a reparametrization invariant and we calculate the Feynman propagator using the extended phase description. We show that the quantum phase of the Feynman propagator is given by the boundary term of the canonical transformation of the extended phase space.