PreprintCC BY 4.0arXiv
Generalized Similarity Theory for Plasmas
Abstract
A generalized theory of plasma similarity is established based on the scaling of the Boltzmann equation coupled with the full set of Maxwell's equations. The predicted similarity scalings are demonstrated through first-principles particle-in-cell and fluid simulations across diverse operational regimes, including collisionless plasmas with two-stream instabilities, pure electron diodes spanning the classical to relativistic regimes, electromagnetic-wave-driven plasmas, and discharge plasmas ranging from low to high ionization regimes. The generalized theory reveals the intrinsic scale-invariant nature of plasmas under specified conditions, rooted in the symmetry and scaling transformations of the governing equations.
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BibTeX
@misc{fu2026generalized,
title = {{Generalized Similarity Theory for Plasmas}},
author = {Yangyang Fu},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.08413},
eprint = {2609.08413},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.08413},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Generalized Similarity Theory for Plasmas
AU - Yangyang Fu
PY - 2026
DA - 2026/09/08
PB - arXiv
DO - 10.48550/arxiv.2609.08413
UR - https://arxiv.org/abs/2609.08413
AB - A generalized theory of plasma similarity is established based on the scaling of the Boltzmann equation coupled with the full set of Maxwell's equations. The predicted similarity scalings are demonstrated through first-principles particle-in-cell and fluid simulations across diverse operational regimes, including collisionless plasmas with two-stream instabilities, pure electron diodes spanning the classical to relativistic regimes, electromagnetic-wave-driven plasmas, and discharge plasmas ranging from low to high ionization regimes. The generalized theory reveals the intrinsic scale-invariant nature of plasmas under specified conditions, rooted in the symmetry and scaling transformations of the governing equations.
ER -