Speaker
Description
In this talk we will present an innovative and alternative way to realise a four-dimensional accelerated expanding cosmology from string theory. This construction is known as the Dark Bubble model and it suggests that an induced four-dimensional universe rides on the boundary (i.e. an expanding $D_{3}$-brane) of a five-dimensional true Anti-de Sitter vacuum that has nucleated within a false AdS vacuum.
The stringy top-down construction of this model comes equipped with a precise and novel scale of hierarchies. This new hierarchy suggests new phenomenology just around the corner of our current observations. Furthermore, we will discuss the unexplored potential of the Dark Bubble model to accommodate higher-dimensional interpretations of four-dimensional fundamental forces induced on the expanding $D_{3}$-brane.
