Abstract.
By using Feynman's path integral formalism in the second order for the relativistic Lagrangian for a spinless particle in a gauge field and applying the covariant derivative instead of the commonly used derivative, but without knowing the operator expressions for the momentum and energy, one can obtain the Klein–Gordon equation.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 9 March 2001 / Published online: 13 June 2001
Rights and permissions
About this article
Cite this article
Felea, D., Beşliu, C., Zgură, I. et al. Klein–Gordon equation from the path integral formalism. Eur. Phys. J. C 20, 713–716 (2001). https://doi.org/10.1007/s100520100693
Issue Date:
DOI: https://doi.org/10.1007/s100520100693