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arxiv: 1402.4760 · v1 · submitted 2014-02-19 · 🌌 astro-ph.HE · hep-ph· nucl-th

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Magnetars and the Chiral Plasma Instabilities

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classification 🌌 astro-ph.HE hep-phnucl-th
keywords magneticchiralfieldinstabilitylargechiralitycoreimbalance
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We propose a possible new mechanism for a strong and stable magnetic field of compact stars due to an instability in the presence of a chirality imbalance of electrons---the chiral plasma instability. A large chirality imbalance of electrons inevitably occurs associated with the parity-violating weak process during core collapse of supernovae. We estimate the maximal magnetic field due to this instability to be of order 10^{18} G at the core. This mechanism naturally generates a large magnetic helicity from the chiral asymmetry, which ensures the stability of the large magnetic field.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Inefficiency of chiral dynamos in protoneutron stars and the early universe

    astro-ph.HE 2026-03 unverdicted novelty 5.0

    Chiral dynamos grow too slowly and are suppressed by flipping when chirality is pumped gradually, rendering them inefficient in protoneutron stars and barely viable near the electroweak transition.

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    hep-ph 2026-04 unverdicted novelty 4.0

    Time-dependent electric fields in relativistic drifting plasma induce polarization drift that modifies the induced current structure, with quantitative estimates of Hall and polarization contributions provided for the...