Towards an explicit construction of de Sitter solutions in classical supergravity

Understand

We revisit the stringy construction of four-dimensional de-Sitter solutions using orientifolds O$8_{\pm}$, proposed by C\'ordova et al.

• arXiv:1911.04498.
• While the original analysis of the supergravity equations is largely numerical, we obtain semi-analytic solutions by treating the curvature as a perturbative parameter.
• At each order we verify that the (permissive) boundary conditions at the orientifolds are satisfied.