The Mode-Coupling Theory for the Nematic Mesophase near the Clearing Point
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概要
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A General kinetic equation is derived for the probability distribution function of critical fluctuations in a nematic liquid crystal below a clearing point using Kawasaki's formulation of the mode-mode coupling theory. Two kinds of variables, i.e., local momentum density and transverse components of the local director are chosen as gross variables. Discussion of the dynamic scaling reveals predominance of orientational relaxation processes in dynamic behavior of critical nematics. A simplified version of the kinetic equation determines time-correlation functions of fluctuations which relate the shear viscosity to the decay rate of director fluctuations to indicate and apparent logarithmic divergence of the critical part of the shear viscosity.
- 理論物理学刊行会の論文
- 1977-07-25
著者
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Shiwa Yasuhiro
Institute Of Physics University Of Tsukuba
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SHIWA Yasuhiro
Institute of Physics, University of Tsukuba
関連論文
- The Mode-Coupling Approach to Sound Propagation in a Critical Fluid. II : Four Heat-Mode Contribution
- The Mode-Coupling Theory for the Nematic Mesophase near the Clearing Point
- The Mode-Coupling Approach to Sound Propagation in a Critical Fluid. I : Correction Due to Hydrodynamic Interactions
- Spin Disgyrations in Superfluid ^3He-A
- The Dynamic Renormalization-Group Theory above a Nematic-Smectic A Transition