Search for dissertations about: "Maria Hermanns"

Found 3 swedish dissertations containing the words Maria Hermanns.

  1. 1. Quasielectrons in Abelian and non-Abelian Quantum Hall States

    Author : Maria Hermanns; Thors Hans Hansson; Steven Simon; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; quantum Hall effect; Condensed matter physics; Kondenserade materiens fysik; Theoretical Physics; teoretisk fysik;

    Abstract : Strongly correlated electron systems continue to  attract a lot of interest. Especially two-dimensional electron systems have shown many surprising behaviours. A fascinating example is the quantum Hall effect, which arises when electrons are confined to two dimensions, subjected to a very large magnetic field, and cooled to very low temperatures. READ MORE

  2. 2. Entanglement spectrum and the bulk polarization

    Author : Carlos Ortega-Taberner; Maria Hermanns; Jens Bardarson; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Theoretical Physics; teoretisk fysik;

    Abstract : In this Licentiate thesis we give a brief review on the topics of topologicalinsulator and superconductor phases, the modern theory of polarization andthe entanglement spectrum, with a focus on one- and two-dimensional systems.In the context of symmetry protected topological systems the bulk polarizationcan be a topological invariant which characterizes the topological phase. READ MORE

  3. 3. Abelian and non-abelian quantum Hall hierarchies

    Author : Yoran Tournois; Maria Hermanns; Kareljan Schoutens; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; fractional quantum hall effect; conformal field theory; Ginzburg-Landau-Chern-Simons; Chern-Simons; wave functions; anyons; fractional statistics; braiding; composite bosons; Theoretical Physics; teoretisk fysik;

    Abstract : A core tenet of condensed matter physics has been that different phases of matter can be classified according to Landau's symmetry breaking paradigm. It has become clear, however, that phases of matter exist that are not distinguished by symmetry, but rather by topology. READ MORE