Partition function zeros and phase transitions for a square-well polymer chain
نویسندگان
چکیده
منابع مشابه
Partition function zeros and phase transitions for a square-well polymer chain.
The zeros of the canonical partition functions for flexible square-well polymer chains have been approximately computed for chains up to length 256 for a range of square-well diameters. We have previously shown that such chain molecules can undergo a coil-globule and globule-crystal transition as well as a direct coil-crystal transition. Here we show that each of these transitions has a well-de...
متن کاملPartition function zeros of the square lattice Potts model.
We have evaluated numerically the zeros of the partition function of the q-state Potts model on the square lattice with reduced interactions K . On the basis of our numerical results, we conjecture that, both for finite planar self-dual lattices and for lattices with free or periodic boundary conditions in the thermodynamic limit, the zeros in the Resxd . 0 region of the complex x seK 2 1dypq...
متن کاملPartition function zeros at first-order phase transitions: A general analysis
We present a general, rigorous theory of partition function zeros for lattice spin models depending on one complex parameter. First, we formulate a set of natural assumptions which are verified for a large class of spin models in a companion paper [5]. Under these assumptions, we derive equations whose solutions give the location of the zeros of the partition function with periodic boundary con...
متن کاملWang-Landau Study of a Square-Well Polymer Chain
A homopolymer chain consisting of monomers interacting via a Square Well (SW) potential exhibits a freezing transition from expanded coil to compact crystalline conformations or transitions from coil conformations to collapsed globules and then to crystalline structures. Following the work of Taylor et al.[J. Chem. Phys. 131, 114907 (2009)] we study a homopolymer SW chain of length 156 N = mono...
متن کاملPartition Function Zeros at First-order Phase Transitions: Pirogov-sinai Theory
This paper is a continuation of our previous analysis [2] of partition functions zeros in models with first-order phase transitions and periodic boundary conditions. Here it is shown that the assumptions under which the results of [2] were established are satisfied by a large class of lattice models. These models are characterized by two basic properties: The existence of only a finite number o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 2013
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.88.012604