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Joint Density of States Calculation Employing Wang–Landau Algorithm

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Abstract

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.

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Acknowledgments

Computations were carried out i) in SHAKTI cluster at Manipal Centre for Natural Sciences, Manipal University ii) at Centre for Modelling, Simulation and Design (CMSD), University of Hyderabad.

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Authors and Affiliations

  1. Manipal Centre for Natural sciences (MCNS), Manipal University, Manipal, Karnataka, 576 104, India

    M. Suman Kalyan & K. P. N. Murthy

  2. Department of Chemical engineering, IIT Bombay, Powai, Mumbai, Maharashtra, 400 076, India

    R. Bharath

  3. School of Physics, University of Hyderabad, Hyderabad, Telengana, 500 046, India

    V. S. S. Sastry & K. P. N. Murthy

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  1. M. Suman Kalyan
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  2. R. Bharath
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  3. V. S. S. Sastry
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  4. K. P. N. Murthy
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Correspondence to M. Suman Kalyan.

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Kalyan, M.S., Bharath, R., Sastry, V.S.S. et al. Joint Density of States Calculation Employing Wang–Landau Algorithm. J Stat Phys 163, 197–209 (2016). https://doi.org/10.1007/s10955-016-1472-5

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  • DOI: https://doi.org/10.1007/s10955-016-1472-5

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