Anomalous discontinuity at the percolation critical point of active gels.

  title={Anomalous discontinuity at the percolation critical point of active gels.},
  author={Michael Sheinman and A. Sharma and Jos{\'e} Alvarado and Gijsje Hendrika Koenderink and Fred C. MacKintosh},
  journal={Physical review letters},
  volume={114 9},
We develop a percolation model motivated by recent experimental studies of gels with active network remodeling by molecular motors. This remodeling was found to lead to a critical state reminiscent of random percolation (RP), but with a cluster distribution inconsistent with RP. Our model not only can account for these experiments, but also exhibits an unusual type of mixed phase transition: We find that the transition is characterized by signatures of criticality, but with a discontinuity in… 

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It is demonstrated that $\tau$ is exactly $2$, directly derivable from RP, and thus there is no foundation of a new universality class.

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Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2011