Influence of aerogel deformation on spin diffusion in liquid 3He: how to take correlations into account?

The transformation law for the correlation function of a nematic aerogel during its deformation is obtained. An approach to describe spin diffusion in 3He, which is confined in a deformed aerogel assuming weak correlation, is proposed. The anisotropy of the diffusion coefficient in a plane perpendicular to the aerogel strands remains small, even for significant deformation.