We describe a two-dimensional geometry that smoothly interpolates between an
asymptotically AdS 2 geometry and the static patch of dS 2. We find this' centaur'geometry to …

A bstract We propose a complete microscopic definition of the Hilbert space of minimal
higher spin de Sitter quantum gravity and its Hartle-Hawking vacuum state. The funda …

We propose a new approach for multiverse analysis based on computational complexity,
which leads to a new family of “computational” measure factors. By defining a cosmology as …

We consider quantum field theory near the horizon of an extreme Kerr black hole. In this
limit, the dynamics is well approximated by a tower of electrically charged fields propagating …

We derive boundary terms appropriate for the general Lanczos–Lovelock action on a null
boundary, when Dirichlet boundary conditions are imposed. We believe that these boundary …

It is shown that, for a de Sitter Universe, the Hartle–Hawking (HH) wave function can be
obtained in a simple way starting from the Friedmann–Lemaitre–Robertson–Walker (FLRW) …

A quantum mechanical formulation of de Sitter cosmological spacetimes still eludes string
theory. In this Letter we conjecture a potentially rigorous framework in which the status of de …

Developing an approach defined in previous papers a correspondence between elementary
particles and elements of a particular set of directed graphs said “glyphs” is made explicit …

It is shown that, for a de Sitter Universe, the Hartle-Hawking (HH) wave function can be
obtained in a simple way starting from the Friedmann-Lemaitre-Robertson-Walker (FLRW) …