SEMINÁRIOS DA PÓS-GRADUAÇÃO (FIMAT): Multicriticality in Nature, Prof. João Plascak

Date: 

quinta-feira, 11 Maio, 2017 - 13:10 to 15:10

Location: 

Sala Multimídia - ICEB - UFOP

SEMINÁRIOS DA PÓS-GRADUAÇÃO (FIMAT): Multicriticality in Nature, Prof. João Plascak

Critical and multicritical phenomena will be reviewed in terms of general thermodynamics. It will be shown that different systems, some as simple as the liquid-gas transition and some as complicated as He4-He3 mixtures or polymers adsorbing at a substrate, can be present a rich variety of critical behavior. Some polymer models as well as magnetic models will then be revisited, with special emphasis on the Ising model, the Blume-Emmery-Griffiths model, the XY model, the Heisenberg model, among others. Analytical and simulational points of view will be presented. The technical approaches employed to obtain the thermodynamics of the models include Renormalization Group procedures, Monte Carlo simulations and spin dynamics, the latter one using simulations and recursion relations.