Sökning: "ribbon operators"

Hittade 3 uppsatser innehållade orden ribbon operators.

  1. 1. Kitaev models for topologically ordered phases of matter

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Författare :Eilind Karlsson; [2017]
    Nyckelord :;

    Sammanfattning : Condensed matter physics is the study of the macroscopic and microscopic properties of condensed phases of matter. For quite some time, Landau’s symmetry breaking theory was believed to describe and explain the nature of any phase transition. LÄS MER

  3. 2. A lattice model for topological phases

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik

    Författare :Jonatan Andersson; [2013]
    Nyckelord :topological order; topological phases; spin lattice model; anyons; quasiparticles; ribbon operators; degenerate ground state; quantum phases;

    Sammanfattning : Matter exists in many different phases, for example in solid state or in liquid phase. There are also phases in which the ordering of atoms is the same, but which differ in some other respect, for example ferromagnetic and paramagnetic states. LÄS MER

  4. 3. Järnvägen Halmstad och Nässjö - en resurs för befolkning och näringsliv

    Kandidat-uppsats, Lunds universitet/Högskoleingenjörsutbildning i byggteknik – järnvägsteknik

    Författare :David Nygren; [2009]
    Nyckelord :näringsliv; transport; infrastruktur; tågtrafik; järnväg; drift- och underhåll; Business and Economics; Technology and Engineering;

    Sammanfattning : The purpose of this study is to show which possibilities the railways in the western part of Småland can offer to the inhabitants and industry within the region. The background is that the passenger traffic is suffering from unprofitability because of bad infrastructure standard, long journey times and low traffic density. LÄS MER