Dresden 2011 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 15: Poster 1: Quanteninformation, Quanteneffekte, Laserentwicklung, Laseranwendungen, Ultrakurze Pulse, Photonik

Q 15.90: Poster

Montag, 14. März 2011, 16:30–19:30, P1

Classical and quantum radiation reaction effects in intense laser fields — •Omri Har-Shemesh, Antonino Di Piazza, Karen Z. Hatsagortsyan, and Christoph H. Keitel — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg (Germany)

A fundamental problem in classical electrodynamics (CED) is the so-called “radiation reaction” problem: classically, when a charged particle (an electron, for definiteness) is accelerated by an external field, it emits radiation and this emission changes the motion of the electron. In the realm of CED, the so-called Landau-Lifshitz (LL) describes the motion of an electron by including the effects of radiation reaction and it has not yet been tested experimentally. We explore a new regime of parameters in which, as predicted by the LL equation, the influence of radiation reaction on the electromagnetic spectra emitted by the electron is substantial [1]. What is the quantum analog of radiation reaction? In [2] we have answered this question and we have investigated the quantum radiation dominated regime, in which quantum recoil and radiation reaction effects both dominate the dynamics of the electron.
[1] A. Di Piazza, Lett. Math. Phys. 83, 305 (2008); A. Di Piazza, K. Z. Hatsagortsyan, and C. H. Keitel, Phys. Rev. Lett. 102, 254802 (2009).
[2] A. Di Piazza, K. Z. Hatsagortsyan, and C. H. Keitel, Phys. Rev. Lett. 105, 220403 (2010).