Description of Research Area

A02: Space-time | Research Projects

A02-001  Fluctuation and Rheology of Soft Matter in Nonequilibrium Steady States


ORIHARA, Hiroshi

Faculty of Engineering, Hokkaido University

Research Subject

We study non-equilibrium fluctuations in multi-degree-of-freedom systems and continuous systems. Specifically, we target soft materials such as dense colloids, liquid crystals with a fluctuating director, and biomatter including actin solutions. Non-Equilibrium steady states of soft matter are mainly generated by applying steady shear strain. Soft matter is literally soft, and as such is suitable for measuring fluctuations and responses to perturbing external forces. The results may be useful for understanding rheological properties. However, commercially available equipment is often useless for measurements on soft matter in non-equilibrium states. Therefore, in this study we develop a new apparatus suitable for such measurements and elucidate the individual and universal features of steady non-equilibrium fluctuations in soft matter.


NAGAYA, Tomoyuki

Faculty of Engineering, Oita University


SATO, Katsuhiko

Research Institute for Electronic Science, Hokkaido University


HIDAKA, Yoshiki

Department of Applied Quantum Physics, Kyushu University

Research Partner

NAKAGAKI, Toshiyuki
Research Institute for Electronic Science, Hokkaido University
(Co-Investigator ~Oct. 2015)
Grant-in-Aid for Scientific Research (KAKENHI) on Innovative Areas, MEXT, Japan
Synergy of Fluctuation and Structure : Quest for Universal Laws in Non-Equilibrium Systems