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Dynamics of transient pattern formation in nematic liquid crystals

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We analyze the dynamics of a transient pattern formation in the Fréedericksz transition corresponding to a twist geometry. We present a calculation of the time-dependent structure factor based on a dynamical model which incorporates consistently the coupling of the director field with the velocity flow and also the effect of fluctuations. The appearance and development of a characteristic periodicity is described in terms of the time dependence of the maximum of the structure factor. We find a well-defined time for the appearance of the pattern and a subsequent stage of pattern development in which the characteristic periodicity tends to an asymptotic value.

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SAN MIGUEL RUIBAL, Maximino, SAGUÉS I MESTRE, Francesc. Dynamics of transient pattern formation in nematic liquid crystals. _Physical Review A_. 1987. Vol. 36, núm. 4, pàgs. 1883-1893. [consulta: 23 de gener de 2026]. ISSN: 1050-2947. [Disponible a: https://hdl.handle.net/2445/9426]

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