Search for dissertations about: "field theory"

Showing result 11 - 15 of 1569 swedish dissertations containing the words field theory.

  2. 11. Quivers, superconformal field theories and higher symmetries

    Author : Robert Moscrop; Michele Del Zotto; Johannes Walcher; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum field theory; Supersymmetry; Conformal field theory; Quivers; Seiberg-Witten theory; Geometric engineering; Higher symmetries; Theoretical Physics; Teoretisk fysik; Machine learning; Maskininlärning;

    Abstract : Quantum field theory (QFT) currently provides our best description of the natural world. Over the past century, it has been able to accurately reproduce many experimental results to an astonishing degree of accuracy and predict the existence of new particles. Despite this, QFT suffers from several mathematical problems. READ MORE

  4. 12. The Development of Swedish Business Journalism : Historical Roots of an Organisational Field

    Author : Maria Grafström; Kerstin Sahlin-Andersson; Lars Engwall; Stefan Jonsson; Royston Greenwood; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Business studies; institutional theory; organisational field; field emergence; institutional entrepreneurs; business journalism; business news; newspapers; Företagsekonomi;

    Abstract : Contemporary Swedish business journalism is an established organisational field with shared practice within and across organisations. Using a historical perspective, this dissertation investigates the early formation of this field and the formation of a shared meaning system for business journalism. READ MORE

  5. 13. Inference on Dark Matter in Effective Field Theories : From XENON1T towards XENONnT: Chiral effective field theory analysis of nuclear recoils, single electrons and uncommon background modelling

    Author : Vasile Cristian Antochi; Jan Conrad; Björn Penning; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Dark Matter; Direct Detection; Effective Field Theory; Chiral Effective Field Theory; Physics; fysik;

    Abstract : Cosmological and astronomical observations show that most of the matter in the Universe is dark. This dissertation provides an overview of the dark matter evidence, and focuses on the particle dark matter hypothesis, describing possible particle candidates, concentrating on the Weakly Interactive Massive Particles (WIMPs). READ MORE

  6. 14. Vertex Operators, String Vertices and Conformal Field Theory Deformations

    Author : Per Sundell; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; conformal field theory; vertex operator; Riemann surface; supersymmetry; Reggeon; string theory; sewing;

    Abstract : 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. READ MORE

  7. 15. Whatever goes around comes around : modular invariance in string theory and conformal field theory

    Author : Patrick D. Roberts; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; conformal field theory; Kac-Moody algebra; covariant lattice; modular invariance; string theory;

    Abstract : .... READ MORE