Melvin Background in Heterotic Theories

Abstract

We give an interpretation of the non-supersymmetric heterotic theories as the supersymmetric heterotic theories on Melvin background with Wilson lines. The coincidence of the partition functions are shown for most of the non-supersymmetric theories. We also discuss the tachyonic instability in terms of the non-trivial background fields. The behavior in the strong coupling region is investigated by using the duality relations of the supersymmetric theories.

25 pages

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• Composite fluxbranes with general intersections
• Supergravity Fluxbranes in Various Dimensions
• Charged Tachyons and Gauge Symmetry Breaking
• Closed String Tachyons and RG flows
• M-theory lift of brane-antibrane systems and localised closed string tachyons
• Orientifolds of String Theory Melvin backgrounds
• On generalized Melvin solution for the Lie algebra $E_6$
• Deformation of CHS model
• Dark Horse, Dark Matter: Revisiting the SO(16)x SO(16)' Nonsupersymmetric Model in the LHC and Dark Energy Era
• Fermions in Bosonic String Theories
• F0 fluxbranes, F-walls and new brane worlds