On the morphological similarities between networklike structures in viscoelastic polymer systems and the large-scale structure of the universe

粘弾性高分子系と宇宙の大規模構造におけるネットワーク構造の形態的類似性について

横田 光史   

Yokota, Terufumi

Networklike structures are observed in various materials and nature. The networklike structures in viscoelastic phase separation of polymer mixtures have been explained by a model with a couple of hydrodynamic equations. On the other hand, the large-scale structure of the universe has been explained by a multi-dimensional extension of the Burgers equation. The networklike structures of the two very different systems have some morphological similarities. To see origins of the similarities and differences, the Burgers equation is derived from the model of the polymer mixtures using several approximations. The meaning of the approximations is discussed in connection with the morphology.