Necessary and sufficient conditions for quasisymmetry von Rodríguez, E., Helander, P., Bhattacharjee, A.

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Neoclassical transport of heavy impurities with poloidally asymmetric density distribution in tokamaks von Angioni, C, Helander, P

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Erratum: “Unified nonlinear theory of spontaneous and forced helical resonant MHD states” [Phys. Plasmas 24, 040701 (2017)] von Loizu, J., Helander, P.

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Comparison of particle trajectories and collision operators for collisional transport in nonaxisymmetric plasmas von Landreman, M., Smith, H. M., Mollén, A., Helander, P.

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Upper Bounds on Gyrokinetic Instabilities in Magnetized Plasmas von Helander, P., Plunk, G. G.

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Stability of electron plasmas in stellarators von Costello, P., Helander, P.

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Stellarators with Permanent Magnets von Helander, P., Drevlak, M., Zarnstorff, M., Cowley, S. C.

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Optimisation of stellarator equilibria with ROSE von Drevlak, M., Beidler, C.D., Geiger, J., Helander, P., Turkin, Y.

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Suppression of electrostatic micro-instabilities in maximum-J stellarators von Alcusón, J A, Xanthopoulos, P, Plunk, G G, Helander, P, Wilms, F, Turkin, Y, Stechow, A von, Grulke, O

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Impurity Transport in a Mixed-Collisionality Stellarator Plasma von Helander, P., Newton, Sarah, Mollén, Albert, Smith, Håkan

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Available energy from diffusive and reversible phase space rearrangements von Kolmes, E. J., Helander, P., Fisch, N. J.

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Erratum: Available Energy of Trapped Electrons and Its Relation to Turbulent Transport [Phys. Rev. Lett. 128, 175001 (2022)] von Mackenbach, R J J, Proll, J H E, Helander, P

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Available Energy of Trapped Electrons and Its Relation to Turbulent Transport von Mackenbach, R J J, Proll, J H E, Helander, P

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Turbulence Mechanisms of Enhanced Performance Stellarator Plasmas von Xanthopoulos, P., Bozhenkov, S. A., Beurskens, M. N., Smith, H. M., Plunk, G. G., Helander, P., Beidler, C. D., Alcuson, J. A., Alonso, A., Dinklage, A., Ford, O., Fuchert, G., Geiger, J., Proll, J. H. E., Pueschel, M. J., Turkin, Y., Warmer, F.

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Fast particle confinement with optimized coil currents in the W7-X stellarator von Drevlak, M., Geiger, J., Helander, P., Turkin, Y.

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Stellarator and tokamak plasmas: a comparison von Helander, P, Beidler, C D, Bird, T M, Drevlak, M, Feng, Y, Hatzky, R, Jenko, F, Kleiber, R, Proll, J H E, Turkin, Yu, Xanthopoulos, P

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Available energy of plasmas with small fluctuations von Helander, P., Mackenbach, R.J.J.

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Gyrokinetic stability theory of electron–positron plasmas von Helander, P., Connor, J. W.

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Improving fast-particle confinement in quasi-axisymmetric stellarator optimization von Henneberg, S A, Drevlak, M, Helander, P

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The residual flow in well-optimized stellarators von Plunk, G.G., Helander, P.

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