Essays about: "ising"

Showing result 1 - 5 of 15 essays containing the word ising.

  1. 1. Thermodynamical properties of cellular automata

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Luca Bertolani; [2020]
    Keywords : Thermodynamics; Statistical; Mechanics; Cellular; automata; chaos; complex; matrix; computational; mathematical; 2d; two; dimensional; program; code; python; ising; teaching; ideal; gas; partition; function; equilibrium; non-equilibrium; classification; neighbourhood; local; Physics and Astronomy;

    Abstract : Cellular automata are a set of discrete computational models whose evolution is defined by neighbourhood rules and are used to simulate many complex systems in physics and science. In this work, statistical mechanics and thermodynamics in and out of equilibrium are used to develop a five-class classification scheme for two-dimensional cellular automata. READ MORE

  2. 2. A scaling approach to critical exponent calculations for the 2D Ising model

    University essay from KTH/Fysik

    Author : Thom Jäderlund; [2020]
    Keywords : ;

    Abstract : .... READ MORE

  3. 3. Properties of cluster-size heterogeneity near the phase transition in the two-dimensional Ising model

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Renée Kauppi; [2020]
    Keywords : Ising model; Cluster-size heterogeneity; Phase transition;

    Abstract : Two different definitions of cluster-size heterogeneity are investigated as well as correlation time of different quantities using the Metropolis algorithm and the Wolff algorithm. It is confirmed that the correlation time multiplied by the computation time is lower for the Wolff algorithm in an area around the critical temperature. READ MORE

  4. 4. Ensemble Green's Function Theory for Interacting Electrons with Degenerate Ground States

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Erik Linnér; [2019]
    Keywords : Green s function; Degeneracy; Density matrix; Ensemble; GW; Zero-temperature; Finite-temperature; Hubbard model; Two-dimensional harmonic oscillator; Ising model; Hydrogen-like model; Physics and Astronomy;

    Abstract : An ensemble Green's function theory for many-electron systems with degenerate ground states, based on the von Neumann density matrix formalism, is proposed. The formalism is constructed without an assumption of an adiabatic connection. An ensemble analogue of Hedin's equations and the GW Approximation (GWA) is constructed. READ MORE

  5. 5. Quantum Criticality in the Transverse Field Random Ising Model

    University essay from KTH/Fysik

    Author : Kristoffer Aronsen; [2019]
    Keywords : ;

    Abstract : .... READ MORE