Sökning: "field theory"

Visar resultat 1 - 5 av 1663 avhandlingar innehållade orden field theory.

  1. 1. Cluster Effective Field Theory

    Författare :EMIL RYBERG; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; effective field theory; charge radius; resonant state; renormalization; radiative capture; halo nuclei; power counting; nuclear physics; few-body physics;

    Sammanfattning : Halo nuclei are loosely bound systems consisting of a core plus valence nucleon(s). In so called Halo, or Cluster, effective field theory, the core of the halo nucleus is treated as an effective degree-of-freedom without internal structure. LÄS MER

  2. 2. Ägonamn : Namnstruktur och namnkontinuitet i två uppländska socknar

    Författare :Elin Pihl; Staffan Nyström; Per Vikstrand; Inge Særheim; Uppsala universitet; []
    Nyckelord :HUMANITIES; HUMANIORA; HUMANIORA; HUMANITIES; Onomastics; field names; place names; name formation; name continuity; ono-masticon; records of names; cadastral records; Almunge; Väddö; namnforskning; ägonamn; ortnamn; namnbildning; namnkontinuitet; onomastikon; uppteckningar; lantmäteriakter; Almunge; Väddö; namnforskning; ägonamn; ortnamn; namnbildning; namnkontinuitet; onomastikon; uppteckningar; lantmäteriakter; Almunge; Väddö; Scandinavian Languages; Nordiska språk;

    Sammanfattning : The purpose of this thesis is to present the general features of field names from the early 17th century to 2012, and to investigate the continuity of such names and attempt to understand what factors are of importance when it comes to their continuity and disappearance. A general survey is conducted in two parishes, Almunge and Väddö, in Uppland, Sweden, with more detailed investigations covering the hamlets of Söderby and Ösby, in Almunge, and Södra Fjäll and Norrbyle, in Väddö. LÄS MER

  3. 3. Conformal Field Theory and D-branes

    Författare :Albrecht Wurtz; Jürgen Fuchs; Bert Schellekens; Karlstads universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; String theory; Conformal field theory; Vertex algebras; D-branes; Physics; Fysik; Physics; Fysik;

    Sammanfattning : The main topic of this doctoral thesis is D-branes in string theory, expressed in the language of conformal field theory. The purpose of string theory is to describe the elementary particles and the fundamental interactions of nature, including gravitation as a quantum theory. LÄS MER

  4. 4. Supergravity, branes and field theory

    Författare :Björn Brinne; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Supergravity; Quantum field theory; Supergravitation; Kvantfältteori;

    Sammanfattning : .... LÄS MER

  5. 5. Strings, Conformal Field Theory and Noncommutative Geometry

    Författare :Keizo Matsubara; Anton Alekseev; Edwin Langmann; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Theoretical physics; Theoretical physics; String theory; Conformal field theory; Noncommutative geometry; Star-products; Teoretisk fysik; Physics; Fysik;

    Sammanfattning : This thesis describes some aspects of noncommutative geometry and conformal field theory. The motivation for the investigations made comes to a large extent from string theory. This theory is today considered to be the most promising way to find a solution to the problem of unifying the four fundamental interactions in one single theory. LÄS MER