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