# Magnetic stochasticity and diffusion.

@article{Jafari2019MagneticSA, title={Magnetic stochasticity and diffusion.}, author={Amir Jafari and Ethan T. Vishniac and Vignesh Vaikundaraman}, journal={Physical review. E}, year={2019}, volume={100 4-1}, pages={ 043205 } }

We develop a quantitative relationship between magnetic diffusion and the level of randomness, or stochasticity, of the diffusing magnetic field in a magnetized medium. A general mathematical formulation of magnetic stochasticity in turbulence has been developed in previous work in terms of the L_{p} norm S_{p}(t)=1/2∥1-B[over ̂]_{l}·B[over ̂]_{L}∥_{p}, pth-order magnetic stochasticity of the stochastic field B(x,t), based on the coarse-grained fields B_{l} and B_{L} at different scales l≠L…

## 6 Citations

Statistical analysis of stochastic magnetic fields.

- PhysicsPhysical review. E
- 2020

Theoretical predictions of the theoretically predicted global relationship between stochasticity and cross energy is observed in different subvolumes of the simulation box and indicate ubiquitous local field-fluid slippage and reconnection events in MHD turbulence.

Fast nuclear spin relaxation rates in tilted cone Weyl semimetals: redshift factors from Korringa relation

- PhysicsJournal of physics. Condensed matter : an Institute of Physics journal
- 2021

It is demonstrated that such a strong enhancement for ζ ≲ 1 that gives rise to very fast relaxation rates, is contributed by a new hyperfine interactions arising from the tilt itself.

3D turbulent reconnection: Theory, tests, and astrophysical implications

- PhysicsPhysics of Plasmas
- 2020

Magnetic reconnection, topological changes in magnetic fields, is a fundamental process in magnetized plasmas. It is associated with energy release in regions of magnetic field annihilation, but this…

Power and complexity in stochastic reconnection

- Physics
- 2020

The level of spatial complexity associated with a given vector field on an arbitrary range of scales \iffalse ${\bf F(x}, t)$ can be quantified by a simple, time-dependent function $S(t)={1\over…

Turbulent drag reduction in magnetohydrodynamic and quasi-static magnetohydrodynamic turbulence

- Physics, Engineering
- 2020

In hydrodynamic turbulence, the kinetic energy injected at large scales cascades to the inertial range, leading to a constant kinetic energy flux. In contrast, in magnetohydrodynamic (MHD)…

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