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CERN Document Server 4 záznamov nájdených  Hľadanie trvalo 1.23 sekúnd. 
1.
Vacuum birefringence by Compton backscattering through a strong field / Wistisen, Tobias N (Aarhus U.) ; Uggerhøj, Ulrik I (Aarhus U.)
We propose a novel scheme to measure nonlinear effects in electrodynamics arising from QED corrections. Our theoretical starting point is the Heisenberg-Euler-Schwinger effective Lagrangian which predicts that a vacuum with a strong static electromagnetic field turns birefringent. [...]
2013 - 6 p. - Published in : Phys. Rev. D 88 (2013) 053009
2.
Experimental evidence of quantum radiation reaction in aligned crystals / Wistisen, Tobias N. (Aarhus U.) ; Di Piazza, Antonino (Heidelberg, Max Planck Inst.) ; Knudsen, Helge V. (Aarhus U.) ; Uggerhøj, Ulrik I. (Aarhus U.)
Radiation reaction is the influence of the electromagnetic field emitted by a charged particle on the dynamics of the particle itself. Here we report experimental radiation emission spectra from ultrarelativistic positrons in silicon in a regime where both quantum and radiation-reaction effects dominate the dynamics of the positrons. [...]
arXiv:1704.01080.- 2018-02-23 - 14 p. - Published in : Nature Commun. 9 (2018) 795 Fulltext: arXiv:1704.01080 - PDF; s41467-018-03165-4 - PDF;
3.
Quantum synchrotron radiation in the case of a field with finite extension / Wistisen, Tobias N (CERN)
The semiclassical operator method of Baier and Katkov allows one to obtain the spectrum of synchrotron radiation in a way similar to the classical derivation but which is fully valid also in the quantum case of very strong electromagnetic fields. In the usual calculation the extension of the field is taken to be infinite. [...]
2015 - 9 p. - Published in : Phys. Rev. D 92 (2015) 045045 APS Open Access article: PDF;
4.
Investigation of classical radiation reaction with aligned crystals / Di Piazza, A. (Heidelberg, Max Planck Inst.) ; Wistisen, Tobias N. (Aarhus U.) ; Uggerhøj, Ulrik I. (Aarhus U.)
Classical radiation reaction is the effect of the electromagnetic field emitted by an accelerated electric charge on the motion of the charge itself. The self-consistent underlying classical equation of motion including radiation-reaction effects, the Landau-Lifshitz equation, has never been tested experimentally, in spite of the first theoretical treatments of radiation reaction having been developed more than a century ago. [...]
arXiv:1503.05717.- 2017-02-10 - 5 p. - Published in : Phys. Lett. B 765 (2017) 1-5 Article from SCOAP3: PDF; Fulltext: PDF; External link: Preprint

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