Resonance between continuous spectra: Secular behavior of Alfvén waves in a flowing plasma

M. Hirota, T. Tatsuno, Z. Yoshida

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Conventional normal mode analysis often falls short in predicting a variety of transient phenomena in a non-self-adjoint (non-Hermitian) system. Laplace transform is capable of capturing all possible behavior in general systems. However, degenerate essential spectra require careful analysis. The Alfvén wave in a flowing plasma is an example in which the coalescence of the Alfvén singularities yields nonexponential growth of fluctuations. Invoking hyperfunction theory, rigorous expression of the Laplace transform leads to an accurate estimate of the asymptotic behavior of resonant singular modes.

Original languageEnglish
Article number012107
Pages (from-to)1-11
Number of pages11
JournalPhysics of Plasmas
Volume12
Issue number1
DOIs
Publication statusPublished - 2005 Jun 27
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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