Nonlocal magnetic-field generation in plasmas without density gradients.
Conventional theories of magnetic-field generation by laser pulses in collisional plasmas require the presence of density gradients or anisotropic pressure. Using the first two-dimensional Fokker-Planck code to self-consistently include magnetic fields, we find that magnetic fields can be spontaneou...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2002
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| _version_ | 1797053562958643200 |
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| author | Kingham, R Bell, A |
| author_facet | Kingham, R Bell, A |
| author_sort | Kingham, R |
| collection | OXFORD |
| description | Conventional theories of magnetic-field generation by laser pulses in collisional plasmas require the presence of density gradients or anisotropic pressure. Using the first two-dimensional Fokker-Planck code to self-consistently include magnetic fields, we find that magnetic fields can be spontaneously generated when a collisional plasma is nonuniformly heated even though inverted delta n = 0 and the pressure is purely isotropic. These magnetic fields, which can become strong enough to significantly affect transport, are attributed to nonlocal effects that are missing in the standard, local theories. |
| first_indexed | 2024-03-06T18:45:26Z |
| format | Journal article |
| id | oxford-uuid:0e57266c-9f33-4cb1-bf4b-578266a1fbcf |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:45:26Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:0e57266c-9f33-4cb1-bf4b-578266a1fbcf2022-03-26T09:45:21ZNonlocal magnetic-field generation in plasmas without density gradients.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0e57266c-9f33-4cb1-bf4b-578266a1fbcfEnglishSymplectic Elements at Oxford2002Kingham, RBell, AConventional theories of magnetic-field generation by laser pulses in collisional plasmas require the presence of density gradients or anisotropic pressure. Using the first two-dimensional Fokker-Planck code to self-consistently include magnetic fields, we find that magnetic fields can be spontaneously generated when a collisional plasma is nonuniformly heated even though inverted delta n = 0 and the pressure is purely isotropic. These magnetic fields, which can become strong enough to significantly affect transport, are attributed to nonlocal effects that are missing in the standard, local theories. |
| spellingShingle | Kingham, R Bell, A Nonlocal magnetic-field generation in plasmas without density gradients. |
| title | Nonlocal magnetic-field generation in plasmas without density gradients. |
| title_full | Nonlocal magnetic-field generation in plasmas without density gradients. |
| title_fullStr | Nonlocal magnetic-field generation in plasmas without density gradients. |
| title_full_unstemmed | Nonlocal magnetic-field generation in plasmas without density gradients. |
| title_short | Nonlocal magnetic-field generation in plasmas without density gradients. |
| title_sort | nonlocal magnetic field generation in plasmas without density gradients |
| work_keys_str_mv | AT kinghamr nonlocalmagneticfieldgenerationinplasmaswithoutdensitygradients AT bella nonlocalmagneticfieldgenerationinplasmaswithoutdensitygradients |