Close

McMaster University will continue to host undergraduate academic activities remotely for the Spring/Summer/Intersession term with only a few exceptions for courses that need student access to specialized equipment.

AIMS Lab Seminar - Xinyang Lu - Asymptotics of a Convex Singular Potential from the Theory of Nematic Liquid Crystals

Description

Speaker: Xinyang Lu (Lakehead University)

Title: Asymptotics of a Convex Singular Potential from the Theory of Nematic Liquid Crystals

Abstract: Liquid crystals (LC) are an intermediate state of the matter between solids and liquids. They exhibit significant mobility, but differently from pure liquids, they have a preferred orientation, commonly referred to as “director”. Modeling LCs has been a long standing problem. One of the most widely models is the Landau-de Gennes theory. The main quantity is a 3 × 3 Q-tensor matrix, and the associated energy is composed of an elastic and a bulk part. Due to modeling requirements, the eigenvalues of the Q-tensor must be constrained in (−1/3, 2/3), a condition known as “physicality”. One way to enforce this is to add a singular convex potential ψ, introduced by Ball and Majumdar. In this talk, we will present several asymptotic estimates on ψ, as the eigenvalues approach −1/3.

Date/Time: Monday November 9, 11:30am - 12:20pm

Location: Virtual

Join Zoom Meeting
https://mcmaster.zoom.us/j/91056982661?pwd=ZndCRXA3MnUvSU5mQUZqd1JXQk5QUT09

Meeting ID: 910 5698 2661
Passcode: 415742
Go Back
McMaster University - Faculty of Science | Math & Stats