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arXiv · 2005.09501

Smearing orientifolds in flux compactifications can be OK

Stephanie Baines·Thomas Van Riet
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Abstract

We present explicit examples of supergravity solutions corresponding to backreacting localised (non-intersecting) O6 planes in flux reductions of massive IIA supergravity and address some criticism towards the very existence of such solutions. We verify in detail how the smeared orientifold solution becomes a good approximation to the localised solution in the large volume/weak coupling limit, as expected. We also find an exotic solution where prior to backreaction the internal space has a boundary and when backreaction is included the boundary disappears and the space closes off. The exotic example is however outside of the supergravity approximation everywhere.

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Stephanie Baines, Thomas Van Riet. 2020-05-19. Smearing orientifolds in flux compactifications can be OK. https://arxiv.org/abs/2005.09501

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