Matches in SemOpenAlex for { <https://semopenalex.org/work/W2078346046> ?p ?o ?g. }
Showing items 1 to 93 of
93
with 100 items per page.
- W2078346046 endingPage "3342" @default.
- W2078346046 startingPage "3335" @default.
- W2078346046 abstract "The stochastic wandering of magnetic field lines allows momentum of even perfectly magnetized electrons to be transported across the mean $stackrel{ensuremath{rightarrow}}{mathrm{B}}$. We include this effect, along with the usual acceleration and scattering terms, in a spatially one-dimensional Boltzmann equation for the electron distribution function. For an electric field ${E}_{ensuremath{parallel}}$ (along local $stackrel{ensuremath{rightarrow}}{mathrm{B}}$) which varies versus position normal to $stackrel{ensuremath{rightarrow}}{mathrm{B}}$, the momentum transport leads to a nonlocal electrical conductivity. We apply the formalism to sheared, force-free magnetoplasmas, in which the ${E}_{ensuremath{parallel}}$ gradient is caused by variable twisting of $stackrel{ensuremath{rightarrow}}{mathrm{B}}$ with respect to an externally applied uniform $stackrel{ensuremath{rightarrow}}{mathrm{E}}$. We examine in particular the experimentally documented phenomenon of field-aligned current density ${j}_{ensuremath{parallel}}>0$ in regions of the sheared magnetic field where ${E}_{ensuremath{parallel}}ensuremath{approx}0$ or even ${E}_{ensuremath{parallel}}<0$. This phenomenon is in apparent violation of Ohm's law. Under suitable conditions of stochasticity and collisionality, we find that the spatial structure and temporal persistence of these force-free configurations can be directly caused by electron-momentum transport. This result is derived solely on the basis of electron dynamics. In contrast to fluid-turbulent models, our kinetic derivation requires no hypothetical plasma dynamo and no conjecture on the decay rates of magnetic helicity versus magnetic energy." @default.
- W2078346046 created "2016-06-24" @default.
- W2078346046 creator A5024710396 @default.
- W2078346046 creator A5087035685 @default.
- W2078346046 date "1984-06-01" @default.
- W2078346046 modified "2023-09-27" @default.
- W2078346046 title "Nonlocal dc electrical conductivity of a Lorentz plasma in a stochastic magnetic field" @default.
- W2078346046 cites W1970570875 @default.
- W2078346046 cites W1982121132 @default.
- W2078346046 cites W1984494329 @default.
- W2078346046 cites W2006436908 @default.
- W2078346046 cites W2020365448 @default.
- W2078346046 cites W2023813879 @default.
- W2078346046 cites W2026650271 @default.
- W2078346046 cites W2037105652 @default.
- W2078346046 cites W2049852329 @default.
- W2078346046 cites W2066257990 @default.
- W2078346046 cites W2074447679 @default.
- W2078346046 cites W2088519693 @default.
- W2078346046 cites W2090114443 @default.
- W2078346046 cites W2092947227 @default.
- W2078346046 doi "https://doi.org/10.1103/physreva.29.3335" @default.
- W2078346046 hasPublicationYear "1984" @default.
- W2078346046 type Work @default.
- W2078346046 sameAs 2078346046 @default.
- W2078346046 citedByCount "137" @default.
- W2078346046 countsByYear W20783460462012 @default.
- W2078346046 countsByYear W20783460462013 @default.
- W2078346046 countsByYear W20783460462014 @default.
- W2078346046 countsByYear W20783460462015 @default.
- W2078346046 countsByYear W20783460462016 @default.
- W2078346046 countsByYear W20783460462017 @default.
- W2078346046 countsByYear W20783460462018 @default.
- W2078346046 countsByYear W20783460462019 @default.
- W2078346046 countsByYear W20783460462020 @default.
- W2078346046 countsByYear W20783460462021 @default.
- W2078346046 countsByYear W20783460462022 @default.
- W2078346046 crossrefType "journal-article" @default.
- W2078346046 hasAuthorship W2078346046A5024710396 @default.
- W2078346046 hasAuthorship W2078346046A5087035685 @default.
- W2078346046 hasConcept C10138342 @default.
- W2078346046 hasConcept C115260700 @default.
- W2078346046 hasConcept C116515362 @default.
- W2078346046 hasConcept C121332964 @default.
- W2078346046 hasConcept C140190676 @default.
- W2078346046 hasConcept C147120987 @default.
- W2078346046 hasConcept C162324750 @default.
- W2078346046 hasConcept C184779094 @default.
- W2078346046 hasConcept C186603090 @default.
- W2078346046 hasConcept C26873012 @default.
- W2078346046 hasConcept C2776675822 @default.
- W2078346046 hasConcept C3079626 @default.
- W2078346046 hasConcept C37914503 @default.
- W2078346046 hasConcept C60718061 @default.
- W2078346046 hasConcept C62520636 @default.
- W2078346046 hasConcept C82706917 @default.
- W2078346046 hasConceptScore W2078346046C10138342 @default.
- W2078346046 hasConceptScore W2078346046C115260700 @default.
- W2078346046 hasConceptScore W2078346046C116515362 @default.
- W2078346046 hasConceptScore W2078346046C121332964 @default.
- W2078346046 hasConceptScore W2078346046C140190676 @default.
- W2078346046 hasConceptScore W2078346046C147120987 @default.
- W2078346046 hasConceptScore W2078346046C162324750 @default.
- W2078346046 hasConceptScore W2078346046C184779094 @default.
- W2078346046 hasConceptScore W2078346046C186603090 @default.
- W2078346046 hasConceptScore W2078346046C26873012 @default.
- W2078346046 hasConceptScore W2078346046C2776675822 @default.
- W2078346046 hasConceptScore W2078346046C3079626 @default.
- W2078346046 hasConceptScore W2078346046C37914503 @default.
- W2078346046 hasConceptScore W2078346046C60718061 @default.
- W2078346046 hasConceptScore W2078346046C62520636 @default.
- W2078346046 hasConceptScore W2078346046C82706917 @default.
- W2078346046 hasIssue "6" @default.
- W2078346046 hasLocation W20783460461 @default.
- W2078346046 hasOpenAccess W2078346046 @default.
- W2078346046 hasPrimaryLocation W20783460461 @default.
- W2078346046 hasRelatedWork W1972203463 @default.
- W2078346046 hasRelatedWork W1997279729 @default.
- W2078346046 hasRelatedWork W2009288827 @default.
- W2078346046 hasRelatedWork W2020534379 @default.
- W2078346046 hasRelatedWork W2023662332 @default.
- W2078346046 hasRelatedWork W2047341554 @default.
- W2078346046 hasRelatedWork W2061359499 @default.
- W2078346046 hasRelatedWork W2081284504 @default.
- W2078346046 hasRelatedWork W2786495534 @default.
- W2078346046 hasRelatedWork W4225998064 @default.
- W2078346046 hasVolume "29" @default.
- W2078346046 isParatext "false" @default.
- W2078346046 isRetracted "false" @default.
- W2078346046 magId "2078346046" @default.
- W2078346046 workType "article" @default.