Glassy dynamics in relaxation of soft-mode turbulence

Details Glassy dynamics in relaxation of soft-mode turbulence Glassy dynamics in relaxation of soft-mode turbulence

2012-02-15

arxiv.org/abs/1202.3218v1

Phys. Rev. E 85, 030701(R) (2012)

Physics

Condensed Matter

Soft Condensed Matter

4pages, 3 figures

Scientific paper

10.1103/PhysRevE.85.030701

The autocorrelation function of pattern fluctuation is used to study soft-mode turbulence (SMT), a spatiotemporal chaos observed in homeotropic nematics. We show that relaxation near the electroconvection threshold deviates from the exponential. To describe this relaxation, we propose a compressed exponential appearing in dynamics of glass forming liquids. Our findings suggest that coherent motion contributes to SMT dynamics. We also confirmed that characteristic time is inversely proportional to electroconvection's control parameter.

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