Stochastic evolution of augmented Born–Infeld equations
File(s)Holm2019_Article_StochasticEvolutionOfAugmented.pdf (658.38 KB)
Published version
Author(s)
Holm, Darryl
Type
Journal Article
Abstract
This paper compares the results of applying a recently developed method of stochastic uncertainty quantification designed for fluid dynamics to the Born–Infeld model of nonlinear electromagnetism. The similarities in the results are striking. Namely, the introduction of Stratonovich cylindrical noise into each of their Hamiltonian formulations introduces stochastic Lie transport into their dynamics in the same form for both theories. Moreover, the resulting stochastic partial differential equations retain their unperturbed form, except for an additional term representing induced Lie transport by the set of divergence-free vector fields associated with the spatial correlations of the cylindrical noise. The explanation for this remarkable similarity lies in the method of construction of the Hamiltonian for the Stratonovich stochastic contribution to the motion in both cases, which is done via pairing spatial correlation eigenvectors for cylindrical noise with the momentum map for the deterministic motion. This momentum map is responsible for the well-known analogy between hydrodynamics and electromagnetism. The momentum map for the Maxwell and Born–Infeld theories of electromagnetism treated here is the 1-form density known as the Poynting vector. Two appendices treat the Hamiltonian structures underlying these results.
Date Issued
2019-02
Date Acceptance
2018-06-06
Citation
Journal of Nonlinear Science, 2019, 29 (1), pp.115-138
ISSN
0938-8974
Publisher
Springer
Start Page
115
End Page
138
Journal / Book Title
Journal of Nonlinear Science
Volume
29
Issue
1
Copyright Statement
© 2018 The Author(s). This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Subjects
math-ph
math.DS
math.MP
math.SG
physics.class-ph
0102 Applied Mathematics
Fluids & Plasmas
Publication Status
Published
Date Publish Online
2018-06-12