Skip to Main content Skip to Navigation

Mathematical study of quantum and classical models for random materials in the atomic scale

Abstract : The contributions of this thesis concern two topics. The first part is dedicated to the study of mean-field models for the electronic structure of materials with defects. In Chapter 2, we introduce and study the reduced Hartree-Fock (rHF) model for disordered crystals. We prove the existence of a ground state and establish, for (short-range) Yukawa interactions, some properties of this ground state. In Chapter 3, we consider crystals with extended defects. Assuming Yukawa interactions, we prove the existence of an electronic ground state, solution of the self-consistent field equation. We also investigate the case of crystals with low concentration of random defects. In Chapter 4, we present some numerical results obtained from the simulation of one-dimensional random systems. In the second part, we consider multiscale-in-time kinetic Monte Carlo models. We prove, for the three models presented in Chapter 6, that in the limit of large time-scale separation, the slow variables converge to an effective dynamics. Our results are illustrated by numerical simulations.
Document type :
Complete list of metadata

Cited literature [112 references]  Display  Hide  Download
Contributor : Salma Lahbabi <>
Submitted on : Tuesday, October 15, 2013 - 12:24:36 PM
Last modification on : Monday, January 25, 2021 - 2:36:02 PM
Long-term archiving on: : Friday, April 7, 2017 - 11:08:25 AM


  • HAL Id : tel-00873213, version 1


Salma Lahbabi. Mathematical study of quantum and classical models for random materials in the atomic scale. Mathematical Physics [math-ph]. Université de Cergy Pontoise, 2013. English. ⟨tel-00873213⟩



Record views


Files downloads