Glassy dynamics in relaxation of soft-mode turbulence.

نویسندگان

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

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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عنوان ژورنال:
  • Physical review. E, Statistical, nonlinear, and soft matter physics

دوره 85 3 Pt 1  شماره 

صفحات  -

تاریخ انتشار 2012