Magnetohydrodynamic turbulence and propagation of cosmic rays: theory
  confronted with observations
  Cosmic ray propagation is determined by the properties of interstellar
turbulence. The multiphase nature of interstellar medium (ISM) and diversity of
driving mechanisms give rise to spatial variation of turbulence properties.
Meanwhile, precision astroparticle experiments pose challenges to the
conventional picture of homogeneous and isotropic transport of cosmic rays
(CRs). We are opening a new horizon for CR propagation research when studies of
particle transport and interstellar turbulence confront each other. Here we
review our recent developement on understandings of magnetohydrodynamic (MHD)
turbulence and its connection to the fundamental processes governing cosmic ray
propagation, different regimes of particle transport, that are augmented with
observational discovery and analysis from multi-wavelength observations.
