Thermodynamics successfully describes natural phenomena under equilibrium, but principles of dynamics are invoked for nonequilibrium systems. Both these frameworks have different sets of assumptions. In this talk we elucidate how some of the critical assumptions of equilibrium statistical mechanics are broken in fluid turbulence and phase transitions. Then we discuss phase transition in a dynamical perspective. In this talk we show how a single framework based on large-scale modes successfully explains hysteresis at zero temperature, and phase coexistence (as in melting transition) in the presence of noise induced by temperature. Our model also explains how the width of the hysteresis loop shirks in the presence of noise, as well as show how initial condition can play a significant role in phase transitions.
Date/Time
Venue
SPS Conference Room
Speaker
Prof. Mahendra Verma
Affiliation
IIT Kanpur