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  Stochasticity in radiative polarization of ultrarelativistic electrons in an ultrastrong laser pulse

Guo, R.-T., Wang, Y., Shaisultanov, R., Wan, F., Xu, Z.-F., Chen, Y.-Y., et al. (2020). Stochasticity in radiative polarization of ultrarelativistic electrons in an ultrastrong laser pulse. Physical Review Research, 2(3): 033483. doi:10.1103/PhysRevResearch.2.033483.

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2003.11200.pdf (Preprint), 4MB
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 Urheber:
Guo, Ren-Tong1, 2, Autor
Wang, Yu1, 2, Autor
Shaisultanov, Rashid2, Autor           
Wan, Feng1, Autor
Xu, Zhong-Feng1, Autor
Chen, Yue-Yue2, 3, Autor
Hatsagortsyan, Karen Zaven2, Autor           
Li, Jian-Xing1, 2, Autor
Affiliations:
1MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University, Xi'an 710049, China, ou_persistent22              
2Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society, ou_904546              
3Department of Physics, Shanghai Normal University, Shanghai 200234, China, ou_persistent22              

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Schlagwörter: Physics, Plasma Physics, physics.plasm-ph
 MPINP: Research group K. Z. Hatsagortsyan – Division C. H. Keitel
 Zusammenfassung: Stochasticity effects in the spin (de)polarization of an ultrarelativistic
electron beam during photon emissions in a counterpropoagating ultrastrong
focused laser pulse in the quantum radiation reaction regime are investigated.
We employ a Monte Carlo method to describe the electron dynamics
semiclassically, and photon emissions as well as the electron radiative
polarization quantum mechanically. While in the latter the photon emission is
inherently stochastic, we were able to identify its imprints in comparison with
the new developed semiclassical stochasticity-free method of radiative
polarization applicable in the quantum regime. With an initially spin-polarized
electron beam, the stochastic spin effects are seen in the dependence of the
depolarization degree on the electron scattering angle and the electron final
energy (spin stochastic diffusion). With an initially unpolarized electron
beam, the spin stochasticity is exhibited in enhancing the known effect of
splitting of the electron beam along the propagation direction into two
oppositely polarized parts by an elliptically polarized laser pulse. The
considered stochasticity effects for the spin are observable with currently
achievable laser and electron beam parameters.

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 Datum: 2020-09-24
 Publikationsstatus: Online veröffentlicht
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 Identifikatoren: arXiv: 2003.11200
DOI: 10.1103/PhysRevResearch.2.033483
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Titel: Physical Review Research
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: College Park, Maryland, United States : American Physical Society (APS)
Seiten: - Band / Heft: 2 (3) Artikelnummer: 033483 Start- / Endseite: - Identifikator: ISSN: 2643-1564
CoNE: https://pure.mpg.de/cone/journals/resource/2643-1564