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On applications of manifest, maximal supersymmetry & U-duality

Anna Karlsson (Institutionen för fundamental fysik)
Göteborg : Chalmers University of Technology, 2013. - 146 s.
[Licentiatavhandling]

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.

Nyckelord: Maximal supersymmetry, maximal supergravity, pure spinors, high energy particle physics, U-duality, generalised geometry, Born-Infeld theory, loop amplitudes



Denna post skapades 2013-07-25.
CPL Pubid: 180269

 

Institutioner (Chalmers)

Institutionen för fundamental fysik (2005-2015)

Ämnesområden

Matematisk fysik
Relativitetsteori, gravitation

Chalmers infrastruktur

Relaterade publikationer

Inkluderade delarbeten:


Pure spinor superfields and Born-Infeld theory


Loop amplitudes in maximal supergravity with manifest supersymmetry


Exceptional geometry and tensor fields


Examination

Datum: 2013-08-27
Tid: 13:15
Lokal: Fasrummet, A820, MC2, Kemivägen 9, Chalmers
Opponent: Fil. Dr. Henrik Johansson, CERN, Switzerland