Dynamics of cholesteric liquid crystals in the presence of a random magnetic field:stochastic dynamics of cholesteric liquid crystal


Autoria(s): Chattopadhyay, Amit K.; Mukherjee, Prabir K.
Data(s)

01/12/2015

Resumo

Based on dynamic renormalization group techniques, this letter analyzes the effects of external stochastic perturbations on the dynamical properties of cholesteric liquid crystals, studied in presence of a random magnetic field. Our analysis quantifies the nature of the temperature dependence of the dynamics; the results also highlight a hitherto unexplored regime in cholesteric liquid crystal dynamics. We show that stochastic fluctuations drive the system to a second-ordered Kosterlitz-Thouless phase transition point, eventually leading to a Kardar-Parisi-Zhang (KPZ) universality class. The results go beyond quasi-first order mean-field theories, and provides the first theoretical understanding of a KPZ phase in distorted nematic liquid crystal dynamics.

Identificador

http://eprints.aston.ac.uk/27452/1/chodynamic.pdf

Chattopadhyay, Amit K. and Mukherjee, Prabir K. (2015). Dynamics of cholesteric liquid crystals in the presence of a random magnetic field:stochastic dynamics of cholesteric liquid crystal. Europhysics Letters, 112 (6),

Relação

http://eprints.aston.ac.uk/27452/

Tipo

Article

PeerReviewed

Formato

application/pdf