Sökning: "Reggeon"
Hittade 5 avhandlingar innehållade ordet Reggeon.
1. Vertex Operators, String Vertices and Conformal Field Theory Deformations
Sammanfattning : We compute multi-string interaction vertices by sewing of basic string interaction vertex operators, so called dual Reggeon vertex operators. These operators describe the interaction between two complete external string sectors. They are particularly useful when the interactions involve twisted sectors. LÄS MER
2. Sewing of twisted and untwisted reggeon vertices
Sammanfattning : .... LÄS MER
3. Strings, Branes and Symmetries
Sammanfattning : Recent dramatic progress in the understanding of the non-perturbative structure of superstring theory shows that extended objects of various kinds, collectively referred to as p-branes, are an integral part of the theory. In this thesis, comprising an introductory text divided in two parts and seven appended research papers (Papers I-VII), we study various aspects of p-branes with relevance for superstring theory. LÄS MER
4. Bosonic string field theory : operator formulation and string field functional formulation
Sammanfattning : .... LÄS MER
5. Loops, Twists and String Vertices: The Sewing Approach to String Perturbation Theory
Sammanfattning : String theory provides the most promising candidate for a unified theory of all fundamental forces and a consistent quantum mechanical theory of gravity. String theory is, at present, defined through its perturbation expansion. There exists various methods for treating the string diagrams one of which is through the sewing of Reggeon vertices. LÄS MER
