Several recent advances in turbulent dynamo theory are reviewed. High resolution
simulations of small-scale and large-scale dynamo action in periodic domains are compared …

These lecture notes are based on a tutorial given in 2017 at a plasma physics winter school
in Les Houches. Their aim is to provide a self-contained graduate-student level introduction …

Turbulence and the associated turbulent transport of scalar and vector fields is a classical
physics problem that has dazzled scientists for over a century, yet many fundamental …

We propose a new mechanism for a turbulent mean-field dynamo in which the magnetic
fluctuations resulting from a small-scale dynamo drive the generation of large-scale …

A rigorous theory for the generation of a large-scale magnetic field by random nonhelically
forced motions of a conducting fluid combined with a linear shear is presented in the …

Our understanding of large-scale magnetic fields in stellar radiative zones remains
fragmented and incomplete. Such magnetic fields, which must be produced by some form of …

Magnetorotational instability–driven (MRI-driven) turbulence and dynamo phenomena are
analyzed using direct statistical simulations. Our approach begins by developing a unified …

The shear-current effect (SCE) of mean-field dynamo theory refers to the combination of a
shear flow and a turbulent coefficient β 21 with a favourable negative sign for exponential …

We present a model of large-scale dynamo action in a shear flow that has stochastic, zero-
mean fluctuations of the α parameter. This is based on a minimal extension of the Kraichnan …

This article presents a calculation of the mean electromotive force arising from general small-
scale magnetohydrodynamical turbulence, within the framework of the second-order …