Data: Des del 19 al 22 de juny
Organitzador: Dep. de Física Fonamental
Conferenciant: Prof. E. Trizac, Universite Paris-Sud
Titol: Complex fluids : from colloidal suspensions to granular gases
Hora: 11:00-13:00
Lloc: Aula 3.20 Facultat de Fisica (edifici nou)
correu: ipagonabarraga@ub.edu


The first and main part of the course will be focused onCoulombic effects in soft matter. A subsequent series of seminars will develop recent research progresses and open the discussion to granulargases.

I Introduction

A What are colloids and granular systems ?
B Properties of colloidal systems
C Forces between colloids and phase behaviour

II Symmetric electrolytes

A Background
B Ionized gases and screening
C Critical behaviour

III Poisson-Boltzmann theory

A A formal derivation
B Solutions known
C Properties
D A remark on symmetry
E The Wigner Seitz-cell approach
D Limit of validity and summary of relevant length scales

IV DLVO theory and the stability of colloidal suspensions

A Charge renormalization
B A pair potential for charged spheres
C Stability analysis
D Orientational ordering in colloidal molecular crystals

V Beyond mean-field

A Like charge attraction
B Overcharging