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Strong field effects in laser pulses: the Wigner formalism
Graz, Austria.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
2011 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 83, no 6, 065007Article in journal (Refereed) Published
Abstract [en]

We investigate strong field vacuum effects using a phase space approach based on the Wigner formalism. We calculate the Wigner function in a strong null-field background exactly, using lightfront field theory. The Wigner function exhibits the distinct features of strong field QED: in particular we identify the effective mass in a laser pulse, compare it to the well-known mass shift in a periodic plane wave and identify signals of multi-photon absorption and emission. Finally, we show how to extend our results to descibe vacuum pair production in colliding laser pulses.

Place, publisher, year, edition, pages
2011. Vol. 83, no 6, 065007
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:umu:diva-39229DOI: 10.1103/PhysRevD.83.065007ISI: 000287961400004OAI: oai:DiVA.org:umu-39229DiVA: diva2:388590
Available from: 2011-01-18 Created: 2011-01-18 Last updated: 2017-01-17Bibliographically approved

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Ilderton, AntonMarklund, MattiasZamanian, Jens

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