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Depletion of Intense Fields
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- Seipt, D. (author)
- Lancaster University,Helmholtz Zentrum,Helmholtz Center
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- Heinzl, T. (author)
- University of Plymouth
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- Marklund, Mattias, 1970 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- (creator_code:org_t)
- 2017
- 2017
- English.
- In: Physical Review Letters. - 1079-7114 .- 0031-9007. ; 118:15, s. 154803-
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The interaction of charged particles and photons with intense electromagnetic fields gives rise to multiphoton Compton and Breit-Wheeler processes. These are usually described in the framework of the external field approximation, where the electromagnetic field is assumed to have infinite energy. However, the multiphoton nature of these processes implies the absorption of a significant number of photons, which scales as the external field amplitude cubed. As a result, the interaction of a highly charged electron bunch with an intense laser pulse can lead to significant depletion of the laser pulse energy, thus rendering the external field approximation invalid. We provide relevant estimates for this depletion and find it to become important in the interaction between fields of amplitude a0?103 and electron bunches with charges of the order of 10 nC.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Plasma
- Scattering
- Quantum Processes
- Strong Electric-Field
- Positron
- Strong Electromagnetic-Wave
- Constant Field
- Laser-Matter Interactions
- In-Field
- Pair Production
Publication and Content Type
- art (subject category)
- ref (subject category)
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