Il Nuovo Cimento B (1971-1996)

, Volume 111, Issue 7, pp 793–797 | Cite as

Equivalence among the propagators of three-dimensional time-dependent quadratic systems and free particles, by solving the Schrödinger equation

  • J. M. F. Bassalo


In this article we evaluate Feynman’s propagator exactly for a threedimensional time-dependent quadratic Lagrangian, by solving the Schrödinger equation. Through a rotation and a non-linear superposition law of coordinates, we show that such a propagator can be obtained from thefree- particle propagator in a new space-time coordinate system.


02.90 Other topics in mathematical methods in physics 


03.65 Quantum theory quantum mechanics 


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Copyright information

© Società Italiana di Fisica 1996

Authors and Affiliations

  • J. M. F. Bassalo
    • 1
  1. 1.Departamento de Física da Universidade Federal do ParáGuamá, Belém, ParáBrasil

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