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This article is cited in 8 scientific papers (total in 8 papers)
CONDENSED MATTER
Asymmetry of the time dynamics of breathers in the electroconvection twist structure of a nematic
O. A. Skaldin, V. A. Delev, E. S. Shikhovtseva Institute of molecule and crystal physics RAS
Abstract:
Dynamics of breather defects in the periodic structures of rolls arising at electroconvection in nematic liquid crystals twisted by $\pi/2$ has been studied experimentally and theoretically. The axial components of the velocity of a hydrodynamic flow in the twist structures of nematics are opposite in the neighboring rolls. Dynamics of the breather defect is the periodic creation and annihilation of a pair of classical dislocations with the topological indices "$+1$" and "$-1$". The annihilation occurs faster than the creation. It has been shown that the asymmetric time dynamics of the breather defect is described well by the solution of the perturbed sine-Gordon equation in the form of an interacting soliton and antisoliton.
Received: 02.11.2012 Revised: 10.12.2012
Citation:
O. A. Skaldin, V. A. Delev, E. S. Shikhovtseva, “Asymmetry of the time dynamics of breathers in the electroconvection twist structure of a nematic”, Pis'ma v Zh. Èksper. Teoret. Fiz., 97:2 (2013), 98–103; JETP Letters, 97:2 (2013), 92–97
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https://www.mathnet.ru/eng/jetpl3335 https://www.mathnet.ru/eng/jetpl/v97/i2/p98
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Abstract page: | 198 | Full-text PDF : | 43 | References: | 41 | First page: | 11 |
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