Path Integrals for Pedestrians

Quantum Mechanics and Summing Up Amplitudes Double Slit Experiment Infinite Slits Experiments and Path-Correspondence Dirac's 1932 Paper on Small Time Amplitudes Time-Slicing: From Infinitesimal to Finite Time Intervals Re-derivation of the Feynman Path Integrals via the Trotter Formula Free-Particle Propagator Continuous Paths but Nowhere Differentiable Path Integrals for Quadratic Potentials WKB in the Operatorial Language WKB in the Path-Integral Language Introduction to the Formalism of Wigner Functions Marinov's Path Integral for Wigner Functions Semiclassical Expansion of Marinov's Work Path Integrals for Classical Mechanics Objects (Cyclists) Corresponding Operatorial Version of Classical Mechanics The Work of Koopman and von Neuman