Dynamics of cholesteric liquid crystals in the presence of a random magnetic field:stochastic dynamics of cholesteric liquid crystal
Data(s) |
01/12/2015
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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 |