Search for dissertations about: "matrix renormalization-group"

Showing result 1 - 5 of 10 swedish dissertations containing the words matrix renormalization-group.

  2. 1. Strongly Correlated Models in One Dimension from a Density Matrix Renormalization Group Perspective

    Author : Stefan Rommer; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; matrix product states; impurities; density matrix renormalization group; Heisenberg model; spin chain; DMRG;

    Abstract : The density matrix renormalization group (DMRG) is a numerical method for studying low dimensional strongly correlated models. The study of these models is one of the most active areas of condensed matter physics today and has been spurred not only by the discovery of high temperature superconductivity but also by experiments on new compounds. READ MORE

  4. 2. Density Matrix Renormalization Group approach to anisotropic 3-dimensional bosons

    Author : Gunnar Bollmark; Adrian Kantian; Salvatore Manmana; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 3. Density-Matrix Renormalization-Group Analysis of Kondo and XY models

    Author : Ausrius Juozapavicius; KTH; []
    Keywords : Quantum spin chain; DMRG; XY model; Ising model; Kondo lattice model; magnetization;

    Abstract : .... READ MORE

  6. 4. Density-matrix renormalization-group analysis of quantum phase transitions in disordered spin chains

    Author : Laura Gabriela Urba; KTH; []
    Keywords : Quantum Phase Transitions; Spin Chains; Disordered Systems; Critical Phenomena;

    Abstract : .... READ MORE

  7. 5. Numerical Renormalization, Doped Antiferromagnets, and Statistics - Topics in Low Dimensional Physics

    Author : Martin Andersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Josephson junctions; matrix-product states; fictitious flux; phase-separation; renormalization; stripes; t-J model; anyons; DMRG;

    Abstract : The first part of the thesis deals with so called numerical renormalization group methods, and in particular the density-matrix renormalization group (DMRG). This method performs extremely well for large one-dimensional quantum systems like spin-chains and Hubbard models. READ MORE