2020 Fall Physics Colloquium
강연일자: 2020. 10. 6. 화. 오후 5시
장소: 비대면 온라인 Zoom
강연자: 백용주 (서울대)
강연주제: Active Matter: a Paradigm for the Physics of Life
Living
systems maintain their structures and functions by staying far from
equilibrium, which they achieve by taking and dissipating energy without any
external bias. Active matter, which autonomously converts stored or ambient
energy into systematic motion, provides a natural framework for studying the
physics of such systems. Unlike the conventional nonequilibrium systems driven
by boundary reservoirs or global external fields, active matter is driven out
of equilibrium at the level of each particle, which leads to a plethora of
novel collective behaviors. In this talk, I will focus on three major aspects
of such phenomena: fluxes
induced by spatial asymmetries, phase
separation even in the absence of attractions, and spontaneous emergence of
orientational order with anomalous fluctuations. I will demonstrate how one can
utilize recent theoretical advancements of statistical physics to study these
phenomena and discuss their biological implications.