Three Methods for Computing the Feynman Propagator

Details Three Methods for Computing the Feynman Propagator Three Methods for Computing the Feynman Propagator

2002-05-15

arxiv.org/abs/quant-ph/0205085v2

Am.J.Phys. 71 (2003) 483-491

Physics

Quantum Physics

21 Latex pages, no figures. Small changes in the text. Some points clarified

Scientific paper

10.1119/1.1538573

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.

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