title: Force-induced triple point for interacting polymers.
abstract: We show the existence of a force induced triple point in an interacting polymer problem that allows two zero-force thermal phase transitions. The phase diagrams for two different models of mutually attracting but self-avoiding polymers are presented. One of these models has an intermediate phase and it shows a triple point. A general phase diagram with multicritical points in an extended parameter space is also discussed.
authors.affiliation: Department of Physics, Banaras Hindu University, Varanasi 221 005, India. yashankit@yahoo.com
authors.forename: Sanjay
authors.initials: S
authors.lastname: Kumar
authors.forename: Debaprasad
authors.initials: D
authors.lastname: Giri
authors.forename: Somendra M
authors.initials: SM
authors.lastname: Bhattacharjee