Glassy dynamics in relaxation of soft-mode turbulence

Fahrudin Nugroho; Takayuki Narumi; Yoshiki Hidaka; Junichi Yoshitani; Masaru Suzuki; Shoichi Kai

doi:10.1103/PhysRevE.85.030701

Glassy dynamics in relaxation of soft-mode turbulence

Fahrudin Nugroho, Takayuki Narumi, Yoshiki Hidaka, Junichi Yoshitani, Masaru Suzuki, Shoichi Kai

Applied Physics

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

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.

Original language	English
Article number	030701
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	85
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevE.85.030701
Publication status	Published - Mar 16 2012

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Statistics and Probability
Condensed Matter Physics

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10.1103/PhysRevE.85.030701

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AU - Narumi, Takayuki

AU - Hidaka, Yoshiki

AU - Yoshitani, Junichi

AU - Suzuki, Masaru

AU - Kai, Shoichi

PY - 2012/3/16

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AB - 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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Glassy dynamics in relaxation of soft-mode turbulence

Abstract

All Science Journal Classification (ASJC) codes

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