Connection between quasisymmetric magnetic fields and anisotropic pressure equilibria in fusion plasmas

E. Rodríguez, A. Bhattacharjee

Research output: Contribution to journalArticlepeer-review

Abstract

The stellarator as a concept of magnetic confinement fusion requires careful design to confine particles effectively. A design possibility is to equip the magnetic field with a property known as quasisymmetry. Though it is generally believed that a steady-state quasisymmetric equilibrium can only be exact locally (unless the system has a direction of continuous symmetry such as the tokamak), we suggest in this work that a change in the equilibrium paradigm can ameliorate this limitation. We demonstrate that there exists a deep physical connection between quasisymmetry and magnetostatic equilibria with anisotropic pressure, extending beyond the isotropic pressure equilibria commonly considered.

Original languageEnglish (US)
Article number015213
JournalPhysical Review E
Volume104
Issue number1
DOIs
StatePublished - Jul 2021

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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