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X-WR-CALDESC:Events for Centre for Mathematical Sciences
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DTSTART:20220101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20221012T150000
DTEND;TZID=UTC:20221012T160000
DTSTAMP:20221203T181734
CREATED:20220919T094426Z
LAST-MODIFIED:20221007T100859Z
UID:4265-1665586800-1665590400@math-sciences.org
SUMMARY:Haidar Al-Naseri (UmeĆ„ University) - Collective plasma effects and Schwinger pair creation
DESCRIPTION:Strong field physics close to or above the Schwinger limit are typically studied with the vacuum as initial condition [1\, 2]\, or by considering test particle dynamics. However\, with a plasma present\ninitially\, quantum relativistic mechanisms such as Schwinger pair-creation are complemented by classical plasma nonlinearities. \nIn this work we use the Dirac-Heisenberg-Wigner formalism [3] to study the interplay between classical and quantum mechanical mechanisms for ultra-strong electric fields. In particular\, the effects of initial density and temperature on the plasma oscillation dynamics are determined. In comparison with previous works [4]\, the physical value of the fine structure constant has been used.
URL:http://math-sciences.org/event/haidar-al-naseri-umea-university-tbc/
LOCATION:Room 101\, 2-5 Kirkby Place\, Plymouth\, PL4 6DT\, United Kingdom
CATEGORIES:Theoretical Physics
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