The Mathematical Institute, University of Oxford, Eprints Archive

Landau-De Gennes theory of nematic liquid
crystals: the Oseen-Frank limit and beyond

Majumdar, Apala and Zarnescu, Arghir (2009) Landau-De Gennes theory of nematic liquid
crystals: the Oseen-Frank limit and beyond.
Not specified . (Submitted)

[img]
Preview
PDF
419Kb

Abstract

We study global minimizers of a continuum Landau-De Gennes energy functional for nematic liquid crystals, in three-dimensional domains, subject to uniaxial boundary conditions. We analyze the physically relevant limit of small elastic constant and show that global minimizers converge strongly, in W 1,2 , to a global minimizer predicted by the Oseen-Frank theory for uniaxial nematic liquid crystals with constant order parameter. Moreover, the convergence is uniform in the interior of the domain, away from the singularities of the limiting Oseen-Frank global minimizer. We obtain results on the rate of convergence of the eigenvalues and the regularity of the eigenvectors of the Landau-De Gennes global minimizer.


We also study the interplay between biaxiality and uniaxiality in Landau-De Gennes global energy minimizers and obtain estimates for various related quantities such as the biaxiality parameter and the size of admissible strongly biaxial regions.

Item Type:Article
Subjects:D - G > General
Research Groups:Oxford Centre for Collaborative Applied Mathematics
ID Code:813
Deposited By:Dr M. Stoll
Deposited On:24 Sep 2009 13:40
Last Modified:24 Sep 2009 13:40

Repository Staff Only: item control page