Sökning: "renormalization group"

Visar resultat 26 - 30 av 35 avhandlingar innehållade orden renormalization group.

  1. 26. Study of the phase diagram of Zn symmetric chains

    Författare :Iman Mahyaeh; Eddy Ardonne; Supriya Krishnamurthy; Joost Slingerland; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; teoretisk fysik; Theoretical Physics;

    Sammanfattning : In this thesis we study the phase diagrams of Zn symmetric chains. We start with investigating the topological phases of the Kitaev chain, a Z2 symmetric model, with long range couplings and a phase gradient. LÄS MER

  3. 27. Jamming and Soft-Core Rheology

    Författare :Daniel Vågberg; Peter Olsson; Teitel Stephen; Vitelli Vincenzo; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; jamming; rheology; soft matter; granular material; SLLOD; critical point; critical scaling;

    Sammanfattning : Many different physical systems, such as granular materials, colloids, foams and emulsions exhibit a jamming transition where the system changes from a liquid-like flowing state to a solid jammed state as the packing fraction increases. These systems are often modeled using soft-core particles with repulsive contact forces. LÄS MER

  4. 28. Supersymmetry, branes and the mysterious M

    Författare :Pär Stjernberg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical physics; Teoretisk fysik; Physics; Fysik; Theoretical Physics; teoretisk fysik;

    Sammanfattning : String theory is the only known theory that unifies general relativity and quantum mechanics in a consistent way. In recent years there has been a dramatic progress in the understanding of the non-perturbative aspects of string theory. It is now believed that string theory is part of a larger theory called M-theory. LÄS MER

  5. 29. Nonlinear Dynamics and Condensed States with Broken Symmetries

    Författare :Anders B. Eriksson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis concerns two topics where symmetry and strong correlations in time and space are important. The first topic is the theory of dynamical systems, and this theory deals with generic phenomena which are often convenient to study in very simple models. LÄS MER

  7. 30. Some applications of representation theory in homogeneous dynamics and automorphic functions

    Författare :Samuel Charles Edwards; Andreas Strömbergsson; Henrik Schlichtkrull; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; automorphic functions; effective equidistribution; Eisenstein series; homogeneous dynamics; horospheres; lattices; Lie groups; representation theory; Mathematics; Matematik;

    Sammanfattning : This thesis consists of an introduction and five papers in the general area of dynamics and functions on homogeneous spaces. A common feature is that representation theory plays a key role in all articles. LÄS MER