It was recently pointed out that the existence of dark energy imposes highly restrictive constraints on effective field theories satisfy Swampland conjectures. We provide a critical confrontation these with cosmological framework emerging from Salam-Sezgin model and its string realization by Cvetič, Gibbons, Pope. also discuss implication for building.

In the original paper a wrong affiliation has been assigned to author Chongchuo Li during typesetting.

A bstract It has been argued that orientifold vacua with fluxes in type IIA string theory can achieve moduli stabilisation and arbitrary decoupling between the AdS KK scales upon sending certain unconstrained RR-flux quanta to infinity. In this paper, we find a novel scalar field open-string sector allows us interpolate such differ flux limit of large is nicely consistent distance conjecture. T...

We explore the phenomenology of scalar fields coupled to asymptotically safe quantum gravity, in light their potential significance for dark matter, inflaton as well dynamical energy, and Higgs sector beyond Standard Model. This work is a step towards delineating boundaries swampland by exploiting constraining power asymptotic-safety paradigm. Firstly, we strengthen indications that gravitation...

Analysis of fossil birds from the Oligocene Jebel Qatrani Formation in the Fayum depression of Egypt, site of the oldest known hominoid primates, allows precise paleoenvironmental reconstruction of the climatic and biotic conditions that influenced some of the earliest stages of hominoid evolution. Unlike the fossil mammals of the Fayum, which belong largely to extinct groups, most of the birds...

In a previous article we have shown the existence of a new independent R4 term, at one loop, in the type IIA and heterotic effective actions, after reduction to four dimensions, besides the usual square of the Bel-Robinson tensor. It had been shown that such a term could not be directly supersymmetrized, but we showed that was possible after coupling to a scalar chiral multiplet. In this articl...