Search for dissertations about: "field theory"
Showing result 1 - 5 of 1569 swedish dissertations containing the words field theory.
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1. Cluster Effective Field Theory
Abstract : 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. READ MORE
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2. Defects, renormalization and conformal field theory
Abstract : Defects in quantum field theories appear in many different contexts and are of great physical interest. Among other things, defects are used to describe the Kondō effect in condensed matter, confinement in quantum chromodynamics, Rényi entropy in quantum information and cosmic strings in string theory. READ MORE
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3. Conformal Field Theory and D-branes
Abstract : 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. READ MORE
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4. Supergravity, branes and field theory
Abstract : .... READ MORE
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5. Strings, Conformal Field Theory and Noncommutative Geometry
Abstract : 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. READ MORE