DNA unzipping and the unbinding of directed polymers in a random media.

@article{Kafri2006DNAUA,
  title={DNA unzipping and the unbinding of directed polymers in a random media.},
  author={Yariv Kafri and Anatoli S. Polkovnikov},
  journal={Physical review letters},
  year={2006},
  volume={97 20},
  pages={208104}
}
We consider the unbinding of a directed polymer in a random media from a wall in d=1+1 dimensions and a simple one-dimensional model for DNA unzipping. Using the replica trick we show that the restricted partition functions of these problems are identical up to an overall normalization factor. Our finding gives an example of a generalization of the stochastic matrix form decomposition to disordered systems, a method which allows us to reduce the dimensionality of the problem. The equivalence… CONTINUE READING