title: Complete phase diagram of DNA unzipping: eye, Y fork, and triple point.
abstract: We study the unzipping of double stranded DNA by applying a pulling force at a fraction s (0< or =s < or =1) from the anchored end. From exact analytical and numerical results, the complete phase diagram is presented. The phase diagram shows a strong ensemble dependence for various values of s. In addition, we show the existence of an eye phase and a triple point.
authors.affiliation: Institute of Physics, Bhubaneswar 751005, India. rajeev@iopb.rs.in
authors.forename: Rajeev
authors.initials: R
authors.lastname: Kapri
authors.forename: Somendra M
authors.initials: SM
authors.lastname: Bhattacharjee
authors.forename: Flavio
authors.initials: F
authors.lastname: Seno
mesh_terms: D004247:DNA / Q000737:chemistry* / Q000378:metabolism; D008954:Models, Biological; D009690:Nucleic Acid Conformation; D013816:Thermodynamics
chemical_list: D004247:DNA