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IAS-Seminar "Numerical simulation of intense field quantum electrodynamic effects in laser plasma"

Anfang
15.11.2016 10:30 Uhr
Ende
15.11.2016 11:30 Uhr
Veranstaltungsort
GRS Lecture Room, building 16.15, room 2009
Speaker:
Dr. Nina Elkina, Helmholtz-Institut Jena
Abstract:
The development of laser technologies promises very rapid growth of laser intensities
in close future already. Two exawatt class facilities (ELI and XCELS)
are currently in the planning stage. Realization of these projects will make
available a laser of intensity 1026 W/cm2 or even higher. In first part of my talk,
I will present a short review of recent progress in studying QED effects which
will be accessible for observation at ELI and XCELS facilities. In particular, I
will discuss effects of radiation reaction, development of electromagnetic cascades
and vacuum birefringence which can be measured by multi-MeV photons
generated in the collision of electrons with a laser pulse.
The second part of my talk will be devoted to discussion of numerical methods
for accurate and effective simulation of plasma in intense field QED regime.
Numerical investigations are generally based on the Monte Carlo (MC) method
for sampling of elementary quantum events of photon emission and electronpositron
pair production, which is coupled with solving the kinetic equations
via particle-in-cell method. However it is not always possible to apply PIC+MC
approach especially on nonlinear stage of cascades due to exponential accumulation
of newly created particles. Finally, I will review the problems that still
need to be overcome in numerical simulations in order to make possible to carry
out full scale simulation of several scenarios of planned experiments at future
high-intensity laser facilities.
Date:
Tuesday, 15 November 2016, 10:30
Venue:
GRS Lecture Room, building 16.15, room 2009
Announcement as pdf file:
 Numerical simulation of intense field quantum electrodynamic effects in laser plasma (PDF, 52 kB)

Anyone interested is cordially invited to participate in this seminar.
Contact: Prof.. Paul Gibbon, p.gibbon@fz-juelich.de


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