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CATEGORIES:Isaac Newton Institute Seminar Series
SUMMARY:A general framework for structure-preserving parti
 cle approximations to Vlasov-Maxwell equations - M
 artin Campos-Pinto  (Max Planck Institute for Plas
 ma Physics)
DTSTART;TZID=Europe/London:20220425T111500
DTEND;TZID=Europe/London:20220425T121500
UID:TALK171821AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/171821
DESCRIPTION:Variational discretizations are known for preservi
 ng key physical invariants in a natural way\, lead
 ing to long-time stability properties. In this tal
 k I will present a discrete action principle for t
 he Vlasov-Maxwell equations that applies in a gene
 ral structure-preserving discrete framework.\nIn t
 his framework the finite-dimensional electromagnet
 ic potentials and fields are represented in a disc
 rete de Rham sequence involving general Finite Ele
 ment spaces\, and the particle-field coupling is r
 epresented by a set of projection operators that c
 ommute with the differential operators.\nOne appli
 cation of this approach is a new variational spect
 ral PIC method that has a discrete Hamiltonian str
 ucture and relies on particle-field coupling techn
 iques very similar to those encountered in standar
 d PIC schemes.
LOCATION:Seminar Room 1\, Newton Institute
CONTACT:
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