Skip to Main content Skip to Navigation
Journal articles

Metric approach for sound propagation in nematic liquid crystals

Abstract : In the eikonal approach, we describe sound propagation near to topological defects of nematic liquid crystal as geodesics of a non-euclidian manifold endowed with an effective metric tensor. The relation between the acoustics of the medium and this geometrical description is given by Fermat's principle. We calculate the ray trajectories and propose a diffraction experiment to retrieve informations about the elastic constants.
Document type :
Journal articles
Complete list of metadatas
Contributor : Lemta Ul <>
Submitted on : Tuesday, January 10, 2017 - 5:07:02 PM
Last modification on : Tuesday, April 21, 2020 - 10:29:59 AM

Links full text




E. Pereira, Sébastien Fumeron, F. Moraes. Metric approach for sound propagation in nematic liquid crystals. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2013, 87 (2), 022506 / 6p. ⟨10.1103/PhysRevE.87.022506⟩. ⟨hal-01431367⟩



Record views