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


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.

Publication DOI: https://doi.org/10.1209/0295-5075/112/60002
Divisions: College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
Additional Information: © IOP
Uncontrolled Keywords: liquid crystals,stochastic mathematics,Physics and Astronomy(all)
Publication ISSN: 1286-4854
Last Modified: 05 Jan 2024 08:39
Date Deposited: 04 Jan 2016 13:40
Full Text Link: http://iopscien ... /112/60002/meta
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Letter
Published Date: 2015-12
Accepted Date: 2015-12-11
Submitted Date: 2015-07-24
Authors: Chattopadhyay, Amit K. (ORCID Profile 0000-0001-5499-6008)
Mukherjee, Prabir K.

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