Three Methods for Computing the Feynman Propagator
Quantum Physics
2009-11-07 v2 High Energy Physics - Theory
Abstract
We present three methods for calculating the Feynman propagator for the non-relativistic harmonic oscillator. The first method was employed by Schwinger a half a century ago, but has rarely been used in non-relativistic problems since. Also discussed is an algebraic method and a path integral method so that the reader can compare the advantages and disadvantages of each method.
Cite
@article{arxiv.quant-ph/0205085,
title = {Three Methods for Computing the Feynman Propagator},
author = {F. A. Barone and H. Boschi-Filho and C. Farina},
journal= {arXiv preprint arXiv:quant-ph/0205085},
year = {2009}
}
Comments
21 Latex pages, no figures. Small changes in the text. Some points clarified