Nematic liquid crystals and biaxiality

  • Xavier Lamy (Université Claude Bernard Lyon 1, Lyon, Institut Camille Jordan, France)
A3 01 (Sophus-Lie room)


In nematic liquid crystals, rod-like molecules tend to align. Locally this alignment can exhibit uniaxial symmetry, or be biaxial. In certain regimes, a "biaxial escape" phenomenon is predicted. We show that the uniaxial symmetry constraint is very rigid independently of the regime: biaxial escape has to be more than the mere breaking of this symmetry. Then we present a rigorous interpretation of biaxial escape at low temperature (joint with Andres Contreras).

Katja Heid

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