Event
UMD Plasma Physics Seminar: Wednesday, 3/31 @3:30 pm
Wednesday, March 31, 2021
3:30 p.m.
via ZOOM
https://terpconnect.umd.edu/~swisdak/PPS/plasma_seminar.html
The next plasma physics seminar will begin at 3:30 pm on Wednesday, March
31st.
It will be held on Zoom at this link:
https://umd.zoom.us/j/8380649660.
Dan Gordon of the Naval Research
Laboratory will be discussing "Overview of Strong Field QED in Laser
Plasmas"
The abstract:
The world's highest intensity lasers produce a combination of irradiance
and electron energy such that quantum electrodynamics (QED) effects are
important. We give an overview of the theoretical methodology that
underlies the QED cross sections used in particle-in-cell (PIC) codes such
as EPOCH and OSIRIS. We highlight generation of copious gamma rays and
electron-positron pairs as a compelling physical outcome of the QED
laser-plasma interactions, and show that EPOCH and OSIRIS are in
quantitative agreement. We comment on physics that is left out of the
standard treatment, and propose a novel cross section that goes beyond the
current state of the art.
The full schedule for this semester can be found at
https://terpconnect.umd.edu/~swisdak/PPS/plasma_seminar.html
