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Interaction and dynamics of defects in convective roll patterns of anisotropic fluids

Title data

Bodenschatz, Eberhard ; Weber, Andreas ; Kramer, Lorenz:
Interaction and dynamics of defects in convective roll patterns of anisotropic fluids.
Universität Bayreuth, Physikalisches Institut
In: Journal of Statistical Physics. Vol. 64 (September 1991) Issue 5 . - pp. 1007-1015.
ISSN 1572-9613
DOI: https://doi.org/10.1007/BF01048810

Abstract in another language

We present an overview of the dynamics and interaction of defects in roll patterns of electroconvection in nematic liquid crystals (EHC). For the decay of an Eckhaus-unstable pattern we distinguish three regimes, depending on the width of the system perpendicular to the wavenumber mismatch. Motivated by recent experiments, we examine the annihilation process of defects in patterns with wavenumber near to band center, where the motion of the defects is dominated by the interaction. The comparison with the experiments shows that this process can be described even quantitatively within the framework of Ginzburg-Landau theory.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics II
Result of work at the UBT: Yes
DDC Subjects: 500 Science
500 Science > 530 Physics
Date Deposited: 23 May 2016 07:20
Last Modified: 23 May 2016 07:20
URI: https://eref.uni-bayreuth.de/id/eprint/32417