Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Stimulated emission by external sources in quantum field theory

  • 61 Accesses

Abstract

A formalism is developed to study stimulated emission by external sources in relativistic quantum field theory as a generalization of an earlier work involving essentially noninteracting particles. A general expression is derived for transition amplitudes for the production of an arbitrary number of particles, as final products, by emission sources when there is initially an arbitrary number of particles before the intervention of the emission sources, thus stimulating the latter for further emissions. An application to quantum electrodynamics is then given in the presence of an external electromagnetic current with an initial background radiation of an arbitrary number of photons with unspecified momenta and spins leading to an electron-positron pair as final products.

This is a preview of subscription content, log in to check access.

References

  1. Manoukian, E. B. (1984).Hadronic Journal,7, 897.

  2. Manoukian, E. B. (1986).International Journal of Theoretical Physics,25, 147.

  3. Nishijima, K. (1969).Fields and Particles: Field Theory and Dispersion Relations, Benjamin, Reading, Massachusetts.

  4. Schwinger, J. (1970).Particles, Sources and Fields, Vol. 1, Addison-Wesley, Reading, Massachusetts.

  5. Schwinger, J. (1973).Particles, Sources and Fields, Vol. 2, Addison-Wesley, Reading, Massachusetts.

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Manoukian, E.B. Stimulated emission by external sources in quantum field theory. Int J Theor Phys 26, 141–149 (1987). https://doi.org/10.1007/BF00669597

Download citation

Keywords

  • Radiation
  • General Expression
  • Field Theory
  • Elementary Particle
  • Quantum Field Theory