Heterotic T-folds with a small number of neutral moduli

Bianchi, Massimo; Pradisi, Gianfranco; Timirgaziu, Maria-Cristina; Tripodi, Luca (2012). Heterotic T-folds with a small number of neutral moduli. Journal of High Energy Physics, 2012(10) Springer 10.1007/JHEP10(2012)089

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We discuss non-geometric supersymmetric heterotic string models in D=4, in the framework of the free fermionic construction. We perform a systematic scan of models with four a priori left-right asymmetric Z2 projections and shifts. We analyze some 220 models, identifying 18 inequivalent classes and addressing variants generated by discrete torsions. They do not contain geometrical or trivial neutral moduli, apart from the dilaton. However, we show the existence of flat directions in the form of exactly marginal deformations and identify patterns of symmetry breaking where product gauge groups, realized at level one, are broken to their diagonal at higher level. We also describe an “inverse Gepner map” from Heterotic to Type II models that could be used, in certain non geometric settings, to define “effective” topological invariants.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Theoretical Physics
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)

UniBE Contributor:

Timirgaziu, Maria-Cristina

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

19 Jun 2014 14:55

Last Modified:

17 Sep 2015 11:14

Publisher DOI:

10.1007/JHEP10(2012)089

BORIS DOI:

10.7892/boris.42808

URI:

https://boris.unibe.ch/id/eprint/42808

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