4 papers · 1 filter
A Lapse in the Cosmological Constant Problem with Bulk Dynamics
Justin Khoury, Benjamin Muntz, Antonio Padilla
We have previously proposed a new approach to the cosmological constant problem based on anisotropic scaling in a compact extra dimension. In the ultra-local limit, the inter…
A Lapse in the Cosmological Constant Problem
Justin Khoury, Benjamin Muntz, Antonio Padilla
We present a new mechanism for addressing the cosmological constant problem based on global constraints arising from a lapse function in a higher-dimensional gravitational theory.…
From Inflation to Quintessence: a History of the Universe in String Theory
Michele Cicoli, Francesc Cunillera, Antonio Padilla +1
We present a type IIB 4D string model with stabilised moduli which is able to describe the history of the universe from inflation to quintessence. The underlying Calabi-Yau volume…
The cosmological constant and the weak gravity conjecture
Yang Liu, Antonio Padilla, Francisco G. Pedro
We examine the descent via membrane nucleation through a landscape of vacua where the cosmological constant is given by a combination of four-form fluxes. It has been shown that th…