Unzipping an adsorbed polymer in a dirty or random environment
arXiv:cond-mat/0505315 · doi:10.1103/PhysRevE.72.051803
Abstract
The phase diagram of unzipping of an adsorbed directed polymer in two dimensions in a random medium has been determined. Both the hard-wall and the soft-wall cases are considered. Exact solutions for the pure problem with different affinities on the two sides are given. The results obtained by the numerical procedure adopted here are shown to agree with the exact results for the pure case. The characteristic exponents for unzipping for the random problem are different from the pure case. The distribution functions for the unzipped length, first bubble, and the spacer are determined.
Published version, uses revtex4, 14 pages
References in corpus (6)
- Measurement of the Phase Diagram of DNA Unzipping in the Temperature- Force Plane
- Force-induced desorption of a linear polymer chain adsorbed on an attractive surface
- Complete Phase Diagram of DNA Unzipping: Eye, Y-fork and triple point
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Cited by in corpus (7)
- Randomly forced DNA
- Unzipping DNA by force: thermodynamics and finite size behaviour
- Manipulating a single adsorbed DNA for a critical endpoint
- Can a double stranded DNA be unzipped by pulling a single strand?: Phases of adsorbed DNA
- Thermodynamic relations for DNA phase transitions
- PT-Symmetry Breaking Transitions in Polymeric Systems
- DNA Unzipping Transition