Joint Density of States Calculation Employing Wang–Landau Algorithm

Joint density of states (JDoS), which depends both on energy and another variable like order parameter provides more information than the conventional density of states (DoS) which depend only on energy. Calculation of JDoS requires huge computational time. In this paper we employ two level method t...

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Bibliographic Details
Published inJournal of statistical physics Vol. 163; no. 1; pp. 197 - 209
Main Authors Kalyan, M. Suman, Bharath, R., Sastry, V. S. S., Murthy, K. P. N.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.04.2016
Springer
Subjects
Algorithms
Analysis
Biopolymers
Ferromagnetism
Mathematical and Computational Physics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Physics
Specific gravity
Statistical Physics and Dynamical Systems
Theoretical
Ising model
Monte Carlo methods
Joint density of states
Heisenberg ferromagnet
DNA
Wang–Landau algorithm
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Summary:Joint density of states (JDoS), which depends both on energy and another variable like order parameter provides more information than the conventional density of states (DoS) which depend only on energy. Calculation of JDoS requires huge computational time. In this paper we employ two level method to calculate JDoS which requires relatively much less computational time. We demonstrate this method on a two dimensional Ising spin system, lattice spin model of double strand DNA (dsDNA) and Heisenberg ferromagnet.
ISSN:0022-4715
1572-9613
DOI:10.1007/s10955-016-1472-5