We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham e-Theses
You are in:

On interpolations from SUSY to non-SUSY strings and their properties

AARONSON, BENEDICT,L,M (2019) On interpolations from SUSY to non-SUSY strings and their properties. Doctoral thesis, Durham University.

Microsoft Word - Accepted Version
Available under License Creative Commons Attribution Non-commercial No Derivatives 2.0 UK: England & Wales (CC BY-NC-ND).



The interpolation from supersymmetric to non-supersymmetric heterotic theories is studied, via the Scherk-Schwarz compactification of supersymmetric $6D$ theories to $4D$. A general modular-invariant Scherk-Schwarz deformation is deduced from the properties of the $6D$ theories at the endpoints, which significantly extends previously known examples. This wider class of non-supersymmetric $4D$ theories opens up new possibilities for model building. The full one-loop cosmological constant of such theories is studied as a function of compactification radius for a number of cases, and the following interpolating configurations are found: two supersymmetric $6D$ theories related by a $T$-duality transformation, with intermediate $4D$ maximum or minimum at the string scale; a non-supersymmetric $6D$ theory interpolating to a supersymmetric $6D$ theory, with the $4D$ theory possibly having an AdS minimum; a ``metastable'' non-supersymmetric $6D$ theory interpolating via a $4D$ theory to a supersymmetric $6D$ theory.

Item Type:Thesis (Doctoral)
Award:Doctor of Philosophy
Keywords:String theory; Supersymmetry; String phenomenology; Compactifications; Spontaneous symmetry breaking
Faculty and Department:Faculty of Science > Physics, Department of
Thesis Date:2019
Copyright:Copyright of this thesis is held by the author
Deposited On:30 May 2019 11:09

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitter