Outside and inside a magnetic island: different perspectives to describe the same observables
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910748365553664 |
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| author | Momo, B. Predebon, I. |
| author_facet | Momo, B. Predebon, I. |
| contents | We compare three different approaches to describe a magnetic island in a generic toroidal plasma: (i) perturbative, from the perspective of the equilibrium magnetic field and the related action in a variational principle formulation, (ii) again perturbative, based on the integrability of a system with a single resonant mode and the application of a canonical transformation onto a new island equilibrium system, and (iii) non-perturbative, making use of a full geometric description of the island considered as a stand-alone plasma domain. For the three approaches, we characterize some observables and discuss the respective limits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_08453 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Outside and inside a magnetic island: different perspectives to describe the same observables Momo, B. Predebon, I. Plasma Physics We compare three different approaches to describe a magnetic island in a generic toroidal plasma: (i) perturbative, from the perspective of the equilibrium magnetic field and the related action in a variational principle formulation, (ii) again perturbative, based on the integrability of a system with a single resonant mode and the application of a canonical transformation onto a new island equilibrium system, and (iii) non-perturbative, making use of a full geometric description of the island considered as a stand-alone plasma domain. For the three approaches, we characterize some observables and discuss the respective limits. |
| title | Outside and inside a magnetic island: different perspectives to describe the same observables |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2405.08453 |