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Magnetic field generation from self-consistent collective neutrino-plasma interactions

Brizard1, Murayama, Wurtele

  • 1Department of Physics, University of California, Berkeley, California 94720 and Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.

Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
|November 23, 2000
PubMed
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This study presents a new fluid model for neutrino-plasma interactions, revealing how these interactions can generate magnetic fields and magnetic helicity.

Area of Science:

  • Plasma Physics
  • Neutrino Physics
  • Astrophysical Fluid Dynamics

Background:

  • Collective neutrino-plasma interactions are crucial in astrophysical phenomena.
  • Existing models often simplify neutrino behavior.
  • Understanding these interactions is key to astrophysical modeling.

Purpose of the Study:

  • To develop a Lagrangian formalism for self-consistent neutrino-plasma interactions.
  • To investigate magnetic field generation and helicity production.
  • To incorporate finite-temperature effects in neutrino-plasma dynamics.

Main Methods:

  • Describing each neutrino species as a classical ideal fluid.
  • Deriving neutrino-plasma fluid equations from a covariant relativistic variational principle.

Related Experiment Videos

  • Retaining finite-temperature effects within the formalism.

    • Main Results:

    • A novel Lagrangian formalism for neutrino-plasma interactions was established.
    • The study demonstrates the generation of magnetic fields via these interactions.
    • The production of magnetic helicity resulting from collective effects was investigated.

    Conclusions:

    • The developed formalism provides a robust framework for studying neutrino-plasma dynamics.
    • Collective neutrino-plasma interactions are a viable source of magnetic fields and helicity.
    • This work advances our understanding of magnetized astrophysical environments.