Warm Topological Langmuir Cyclotron Wave
Plasma Physics
2026-05-11 v1
Abstract
Finite-temperature effects in magnetized electron plasmas create a new Weyl-point degeneracy between the warm Langmuir and right-circularly polarized waves. The associated topological charge at this warm Weyl point is found to be 1, which, by the index theorem, predicts a gap-traversing topological edge mode. Solving the full warm-fluid eigenmode problem In a 1D inhomogeneous equilibrium, we numerically identify this anticipated mode as the warm topological Langmuir-cyclotron wave, which is absent in the cold limit and occurs in a parameter regime relevant to the LArge Plasma Device (LAPD) at UCLA.
Cite
@article{arxiv.2605.07845,
title = {Warm Topological Langmuir Cyclotron Wave},
author = {Virginia Billings and Hong Qin and Chuang Ren and J. B. Marston},
journal= {arXiv preprint arXiv:2605.07845},
year = {2026}
}
Comments
16 pages, 4 figures