Directed percolation criticality in turbulent liquid crystals.

@article{Takeuchi2007DirectedPC,
  title={Directed percolation criticality in turbulent liquid crystals.},
  author={Kazumasa A. Takeuchi and Masafumi Kuroda and Hugues Chat{\'e} and Masaki Sano},
  journal={Physical review letters},
  year={2007},
  volume={99 23},
  pages={
          234503
        }
}
We experimentally investigate the critical behavior of a phase transition between two topologically different turbulent states of electrohydrodynamic convection in nematic liquid crystals. The statistical properties of the observed spatiotemporal intermittency regimes are carefully determined, yielding a complete set of static critical exponents in full agreement with those defining the directed percolation class in 2+1 dimensions. This constitutes the first clear and comprehensive experimental… 

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