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Hamiltonian reductions of the one-dimensional Vlasov equation using phase-space moments
- Source :
- Journal of Mathematical Physics, Journal of Mathematical Physics, American Institute of Physics (AIP), 2016, 57, pp.032902. ⟨10.1063/1.4944720⟩, Journal of Mathematical Physics, 2016, 57 (3), pp.032902. ⟨10.1063/1.4944720⟩
- Publication Year :
- 2015
-
Abstract
- We consider Hamiltonian closures of the Vlasov equation using the phase-space moments of the distribution function. We provide some conditions on the closures imposed by the Jacobi identity. We completely solve some families of examples. As a result, we show that imposing that the resulting reduced system preserves the Hamiltonian character of the parent model shapes its phase space by creating a set of Casimir invariants as a direct consequence of the Jacobi identity. We exhibit three main families of Hamiltonian models with two, three, and four degrees of freedom aiming at modeling the complexity of the bunch of particles in the Vlasov dynamics.
- Subjects :
- Jacobi identity
Physics
Vlasov equation
FOS: Physical sciences
Statistical and Nonlinear Physics
Mathematical Physics (math-ph)
Nonlinear Sciences - Chaotic Dynamics
01 natural sciences
010305 fluids & plasmas
Casimir effect
symbols.namesake
Distribution function
Phase space
0103 physical sciences
[NLIN.NLIN-CD]Nonlinear Sciences [physics]/Chaotic Dynamics [nlin.CD]
symbols
Direct consequence
Chaotic Dynamics (nlin.CD)
010306 general physics
Hamiltonian (quantum mechanics)
Mathematical Physics
Mathematical physics
Subjects
Details
- Language :
- English
- ISSN :
- 00222488
- Database :
- OpenAIRE
- Journal :
- Journal of Mathematical Physics, Journal of Mathematical Physics, American Institute of Physics (AIP), 2016, 57, pp.032902. ⟨10.1063/1.4944720⟩, Journal of Mathematical Physics, 2016, 57 (3), pp.032902. ⟨10.1063/1.4944720⟩
- Accession number :
- edsair.doi.dedup.....8510a59497f0f00bd1d369d640df7118