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American Journal of Physics -- May 2003 -- Volume 71, Issue 5, pp. 483

Three methods for calculating the Feynman propagator

F. A. Barone, H. Boschi-Filho, and C. Farina

Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, CEP 21945-970, Rio de Janeiro, Brazil

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We present three methods for calculating the Feynman propagator for the nonrelativistic harmonic oscillator. The first method was employed by Schwinger a half a century ago, but has rarely been used in nonrelativistic 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. © 2003 American Association of Physics Teachers.

© 2003 American Association of Physics Teachers

KEYWORDS and PACS

Keywords

teaching, algebra, Feynman diagrams, harmonic oscillators, quantum theory

PACS

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History
Received Apr 2002
Accepted Nov 2002
Online Apr 2003

PUBLICATION DATA

ISSN

0002-9505 (print)  

Publisher

$abstract.society.value is a Member of CrossRef American Association of Physics Teachers

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1119/1.1538573

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