George Tringas - On the robustness of scale-separated AdS4 from type IIA

In this presentation, I will discuss an extension of the so called DGKT solution resulting from the O6 plane backreaction. Our focus will center on a well-established large N expansion method that allows us to identify corrections to fields and flux profiles due to backreaction, thereby refining the smeared DGKT solution. The parameter N represents the unbounded F4 flux parameter. We will investigate this extension within the framework of ten-dimensional massive type IIA supergravity and a four-dimensional effective theory, utilizing a warped compactification framework. Our analysis will encompass the generalization of flux scaling and the exploration of potential contributions from backreaction corrections, including axions. We will discuss the relevance of corrections to the DGKT scalar potential and determine whether they dominate over alpha prime corrections. Additionally, we will consider flux quantization, which imposes crucial constraints on flux corrections. Our investigation extends to the examination of next-to-next-to-leading-order corrections and their implications. This presentation will be based on the recent paper 2310.06115.