Transition to superdiffusive transport in turbulent plasmas
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.
Authors
- X. Garbet (ORCID: https://orcid.org/0000-0001-5730-1259)
- C. Chandré (ORCID: https://orcid.org/0000-0003-3667-259X)
- Matteo Stanzani (ORCID: https://orcid.org/0009-0008-2281-1804)
- Filippo Arlotti (ORCID: https://orcid.org/0009-0006-3725-7303)
- Guido Ciraolo (ORCID: https://orcid.org/0009-0009-1539-8537)
Institutions
- Aix-Marseille Université (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Institut de Mécanique et d'Ingénierie de Bordeaux (FR)
- CEA Cadarache (FR)
- Institut de Recherche sur la Fusion par confinement Magnétique (FR)
- University of Bologna (IT)
Publication Details
- Journal
- Physical review. E
- Published
- 2024-08-16
- DOI
- https://doi.org/10.1103/physreve.110.025204
- Citations
- 1
- Primary Topic
- Magnetic confinement fusion research
- Type
- article
- Field-Weighted Citation Impact
- 0.66