Evaluation of laser-assisted bremsstrahlung with dirac-volkov propagators

Erik Lötstedt, U. Jentschura, Christoph H. Keitel

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38 Citations (Scopus)

Abstract

We study spontaneous bremsstrahlung emission in a highly intense laser field. In this regime the interaction with the laser field has to be treated nonperturbatively by using the relativistic formalism including Dirac-Volkov propagators, while the interaction with the Coulomb field and the bremsstrahlung radiation can be treated in first-order perturbation theory. For the intermediate electron state a fully laser-dressed propagator is used, including radiative corrections to avoid singularities on the mass shell. We find that the use of the Dirac-Volkov propagator is crucial to obtain correct numerical results. The cross section of the process is evaluated for laser intensities of order 1020W/cm2 and relativistic energies of the initial electron.

Original languageEnglish
Article number043002
JournalPhysical Review Letters
Volume98
Issue number4
DOIs
Publication statusPublished - 2007

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bremsstrahlung
propagation
evaluation
lasers
electron states
perturbation theory
interactions
formalism
cross sections
radiation
electrons
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Evaluation of laser-assisted bremsstrahlung with dirac-volkov propagators. / Lötstedt, Erik; Jentschura, U.; Keitel, Christoph H.

In: Physical Review Letters, Vol. 98, No. 4, 043002, 2007.

Research output: Contribution to journalArticle

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