Sökning: "field theory"

Visar resultat 11 - 15 av 1938 avhandlingar innehållade orden field theory.

  1. 11. A Field of Veiled Continuities : Studies in the Methodology and Theory of Educational Research

    Författare :Corrado Matta; Klas Roth; Anna-Lena Kempe; Till Grüne-Yanoff; Harold Kincaid; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Methodology of Educational Research; Educational Theory; Educational Philosohy; Philosophy of the Social Sciences; Causal Explanations of Actions; Qualtative Methods; Scientific Representation; Learning; Actor Network Theory; Ontic Structural Realism; pedagogik; Education;

    Sammanfattning : Empirical educational research enjoys a methodological and theoretical debate that is characterized by a number of unresolved and lively debated controversies. This compilation thesis is an attempt to contribute to this debate using the toolbox of philosophy of science.The thesis consists of an introductory chapter and four essays. LÄS MER

  3. 12. Quivers, superconformal field theories and higher symmetries

    Författare :Robert Moscrop; Michele Del Zotto; Johannes Walcher; Uppsala universitet; []
    Nyckelord :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;

    Sammanfattning : 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. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  5. 14. 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

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

    Sammanfattning : 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). LÄS MER

  7. 15. Vertex Operators, String Vertices and Conformal Field Theory Deformations

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

    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