On applications of manifest, maximal supersymmetry & U-duality
Licentiatavhandling, 2013

Maximal supersymmetry is made manifest through the introduction of the pure spinor formalism. In many ways, this formalism represents a powerful tool in examinations of characteristics of different theories in high energy physics, though it is far from extensively exploited. In this thesis, we review the ideas behind the manifestly, maximally supersymmetric formulations of supersymmetric Yang--Mills theory and supergravity, as well as the concept of pure spinors. We then proceed to the two research areas of Born--Infeld theory in the context of D-branes and loop amplitude descriptions of supersymmetric Yang--Mills theory and supergravity. Both are examples of theories in which interesting applications for the pure spinor formulations can be found. For example, the question of finiteness of the amplitude description in perturbative maximal supergravity in four dimensions is not yet quite settled. The theory is not believed to be finite, but an actual divergence still remains to be found. In addition, we briefly review the concept of U-duality and its description in terms of generalised, exceptional geometry. Apart from being an interesting research area on its own, e.g. with respect to its tensor formalism, it also connects to restrictions of loop amplitude descriptions of maximal supergravity and ongoing research.

maximal supergravity

pure spinors

Maximal supersymmetry

loop amplitudes

U-duality

Born-Infeld theory

generalised geometry

high energy particle physics

Fasrummet, A820, MC2, Kemivägen 9, Chalmers
Opponent: Fil. Dr. Henrik Johansson, CERN, Switzerland

Författare

Anna Karlsson

Chalmers, Fundamental fysik

Loop amplitudes in maximal supergravity with manifest supersymmetry

Journal of High Energy Physics,; Vol. 2013(2012)p. 114-

Artikel i vetenskaplig tidskrift

Pure spinor superfields and Born-Infeld theory

Journal of High Energy Physics,; Vol. 2011(2011)

Artikel i vetenskaplig tidskrift

Exceptional geometry and tensor fields

Journal of High Energy Physics,; (2013)

Artikel i vetenskaplig tidskrift

Fundament

Grundläggande vetenskaper

Ämneskategorier

Annan fysik

Fasrummet, A820, MC2, Kemivägen 9, Chalmers

Opponent: Fil. Dr. Henrik Johansson, CERN, Switzerland

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Skapat

2017-10-06