Work

Characterization of admissible quasisymmetries

Year: 2025

Type: article

Abstract: We solve ‘half’ the problem of finding three-dimensional quasisymmetric magnetic fields that do not necessarily satisfy magnetohydrostatic force balance. This involves determining which hidden symmetries are admissible as quasisymmetries, and then showing explicitly how to construct quasisymmetric magnetic fields given an admissible symmetry. The admissibility conditions take the form of a system of overdetermined nonlinear partial differential equations involving second derivatives of the symmetry's infinitesimal generator.

Source: Journal of Plasma Physics

DOI: 10.1017/s0022377824001478

Authors: J.W. Burby, N. Kallinikos, R.S. MacKay, D. Perrella, D. Pfefferlé

Institutions: The University of Texas at Austin, University of Warwick, The University of Western Australia

Language: English

Topic: Magnetic confinement fusion research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,550

Funders: U.S. Department of Energy, Simons Foundation, Fusion Energy Sciences