The complex system consists of many particles interacting strongly with each other and shows the emergence phenomena which not understandable by only considering the characteristics of each particle separately. Features of these systems include power-law distributions. The power function distribution is in the form of y ∝ x ^-α and is scale-free, showing the correlation length divergence. For example, the absence of a scale means that if a person's key distribution follows a power function distribution, most people are 1 to 2 meters in height, but some may be 10 meters in height. Also, the fact that a correlated ray diverges means that the motion of one particle affects the entire system.
 Our laboratory is interested not only in physics but also in natural systems such as ecosystems, nervous systems, and society, and we are studying various fields.

Lab. Introduction at the department Lab. Introduction at the graduate school