Random copolymers and the Morita approximation : polymer adsorption and polymer localization

@inproceedings{Orlandini2002RandomCA,
  title={Random copolymers and the Morita approximation : polymer adsorption and polymer localization},
  author={Enzo Orlandini and Andrew Rechnitzer and S. G. Whittington},
  year={2002}
}
We analyse directed walk models of random copolymer adsorption and localization. Ideally we would like to solve the quenched problem, but it appears to be intractable even for simple directed models. The annealed approximation is solvable, but is inadequate in the strong interaction regime for the adsorption problem and gives a qualitatively incorrect phase diagram for the localization problem. In this paper, we treat these directed models using an approximation suggested by Morita (1964 J… CONTINUE READING

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