A one-dimensional variational problem for cholesteric liquid crystals with disparate elastic constants
نویسندگان
چکیده
We consider a one-dimensional variational problem arising in connection with model for cholesteric liquid crystals. The principal feature of our study is the assumption that twist deformation nematic director incurs much higher energy penalty than other modes deformation. appropriate ratio elastic constants then gives small parameter ε entering an Allen-Cahn-type functional augmented by term. behavior as tends to zero. demonstrate existence local minimizers classified their overall twist, find Γ-limit relaxed energies and show it consists jump terms. Further, we extend results include situation when pitch vanishes along ε.
منابع مشابه
Statistical Theory of Elastic Constants of Cholesteric Liquid Crystals
A statistical theory of cholesteric liquid crystals composed of short rigid biaxial molecules is presented. It is derived in the thermodynamic limit at a small density and a small twist. The uniaxial (biaxial) cholesteric phase is regarded as a distorted form of the uniaxial (biaxial) nematic phase. The chirality of the interactions and the implementation of the inversion to the rotation matrix...
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ژورنال
عنوان ژورنال: Journal of Differential Equations
سال: 2021
ISSN: ['1090-2732', '0022-0396']
DOI: https://doi.org/10.1016/j.jde.2021.03.045