# Dynamics of cholesteric liquid crystals in the presence of random magnetic fields

Source: [Dynamics of cholesteric liquid crystals in the presence of random magnetic fields](<https://www.sota2.com/research/paper/68fa33021e209131ce88c9b0>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T19:49:26.893Z

Authors: Amit K. Chattopadhyay, Prabir K. Mukherjee

Published: 2016-02-09T23:34:25.000Z

## Abstract

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.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1602.03219>)

[PDF](<https://arxiv.org/pdf/1602.03219.pdf>)