DWSB in heterotic flux compactifications

作者：Held Johannes^*; Luest Dieter; Marchesano Fernando; Martucci Luca

来源：The Journal of High Energy Physics, 2010, 2010(6): 090.

DOI：10.1007/JHEP06(2010)090

• Flux compactifications
• Supersymmetry Breaking
• Superstrings and Heterotic Strings
• Superstring Vacua

We address the construction of non-supersymmetric vacua in heterotic compactifications with intrinsic torsion and background fluxes. In particular, we implement the approach of domain-wall supersymmetry breaking (DWSB) previously developed in the context of type II flux compactifications. This approach is based on considering backgrounds where probe NS5-branes wrapping internal three-cycles and showing up as four-dimensional domain-walls do not develop a BPS bound, while all the other BPS bounds characterizing the N = 1 supersymmetric compactifications are preserved at tree-level. Via a scalar potential analysis we provide the conditions for these backgrounds to solve the ten-dimensional equations of motion including order alpha' corrections. We also consider backgrounds where some of the NS5-domain-walls develop a BPS bound, show their relation to no-scale SUSY-breaking vacua and construct explicit examples via elliptic fibrations. Finally, we consider backgrounds with a non-trivial gaugino condensate and discuss their relation to supersymmetric and non-supersymmetric vacua in the present context.

• 出版日期2010-6