Phase-ordering dynamics of nematic liquid crystals

We study phase ordering in nematic liquid crystals using cell-dynamics simulations for d=2, n=2, and d=3, n=3. The tail in the structure function decays as k^-χ, with {χ}=4.0±{}0.1 for d=2 and {χ}=5.3±{}0.1 for d=3. We compare these values to results of Bray and Puri [Phys. Rev. Lett. 99, 99 (1992)] for a vector order parameter and to experimental measurements. For the d=3 system the characteristic length scale in the system varies as L(t){~}t^φ, with {φ}=0.44±{}0.01.