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Quasisymmetric (quasihelically symmetric) plasma equilibria are non-[[axisymmetry|axisymmetric]] configurations in which the magnetic field strength depends only on one angular coordinate within the magnetic [[flux surface]]s. | Quasisymmetric (quasihelically symmetric) [[MHD equilibrium|plasma equilibria]] are non-[[axisymmetry|axisymmetric]] configurations in which the magnetic field strength depends only on one angular coordinate within the magnetic [[flux surface]]s. | ||
<ref>[[doi:10.1063/1.859916|D.A. Garren and A.H. Boozer, ''Existence of quasihelically symmetric stellarators'', Phys. Fluids B 3 (1991) 2822]]</ref> | <ref>[[doi:10.1063/1.859916|D.A. Garren and A.H. Boozer, ''Existence of quasihelically symmetric stellarators'', Phys. Fluids B 3 (1991) 2822]]</ref> | ||
This concept is part of the program of [[stellarator optimization]] (designing stellarators to have reduced | This concept is part of the program of [[stellarator optimization]] (designing stellarators to have reduced transport, i.e., heat and particle losses). | ||
Types of quasisymmetry: | Types of quasisymmetry: |