| Numéro |
J. Phys. I France
Volume 3, Numéro 11, November 1993
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|---|---|---|
| Page(s) | 2131 - 2138 | |
| DOI | https://doi.org/10.1051/jp1:1993110 | |
DOI: 10.1051/jp1:1993110
J. Phys. I France 3 (1993) 2131-2138
1 School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540, U.S.A.
2 Department of Physics, University of Pennsylvania, Philadelphia, PA 19104, U.S.A.
© Les Editions de Physique 1993
J. Phys. I France 3 (1993) 2131-2138
Twisted line liquids
Randall D. Kamien1 and T. C. Lubensky21 School of Natural Sciences, Institute for Advanced Study, Princeton, NJ 08540, U.S.A.
2 Department of Physics, University of Pennsylvania, Philadelphia, PA 19104, U.S.A.
(Received 22 July 1993, received in final form 17 August 1993, accepted 30 August 1993)
Abstract
We propose a model of directed lines where the average direction has the nature of a cholesteric liquid crystal. This model,
for instance, would describe the liquid of screw dislocations in the twist-grain-boundary (TGB) phase of liquid crystals.
We show that the presence of lines does not alter the long wavelength elasticity of a cholesteric and, therefore, does not
stabilize Landau-Peierls instability of the cholesteric phase. We discuss other possible mechanisms for stabilizing the twist-grain-boundary
phase.
© Les Editions de Physique 1993