Transition to super-diffusive transport in turbulent plasmas - Institut de Mathématiques de Marseille 2014-
Article Dans Une Revue Physical Review E Année : 2023

Transition to super-diffusive transport in turbulent plasmas

Résumé

We investigate the motion of charged particles in a turbulent electrostatic potential using guiding-center theory. By increasing the Larmor radius, the dynamics exhibit close-to-ballistic transport properties. The transition from diffusive to ballistic transport is analyzed using nonlinear dynamics. It is found that twistless invariant tori in the guiding-center dynamics are responsible for this transition, drastically affecting transport properties of charged particles.
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Dates et versions

hal-04194791 , version 1 (04-09-2023)
hal-04194791 , version 2 (21-08-2024)

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Matteo Stanzani, Filippo Arlotti, Guido Ciraolo, Xavier Garbet, Cristel Chandre. Transition to super-diffusive transport in turbulent plasmas. Physical Review E , 2023, 110 (2), pp.025204. ⟨10.1103/PhysRevE.110.025204⟩. ⟨hal-04194791v2⟩
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