349 citations · 1.2k across the 23 of their papers we have counts for
23 papers
Geodesic completion of big bangs from emergent geometry
Brooke Berrios, Cameron Corley, Sky O'Donnell +2
Chaplygin gas and other k-essence models exhibit emergent geometry, with perturbations propagating on an acoustic metric disformally related to the Einstein-frame metric. For super…
Small dark energy without small parameters
Benjamin Shlaer
We present a prototype model that resolves the cosmological constant problem using matter alone, i.e., without modifying gravity. Its generic cosmological solutions adjust an arbit…
Efficient numerical solution to vacuum decay with many fields
Ali Masoumi, Ken D. Olum, Benjamin Shlaer
Finding numerical solutions describing bubble nucleation is notoriously difficult in more than one field space dimension. Traditional shooting methods fail because of the extreme n…
Bubbles of Nothing and Supersymmetric Compactifications
Jose J. Blanco-Pillado, Benjamin Shlaer, Kepa Sousa +1
We investigate the non-perturbative stability of supersymmetric compactifications with respect to decay via a bubble of nothing. We show examples where this kind of instability is…
Cosmic string loop shapes
Jose J. Blanco-Pillado, Ken D. Olum, Benjamin Shlaer
We analyze the shapes of cosmic string loops found in large-scale simulations of an expanding-universe string network. The simulation does not include gravitational back reaction,…
Solution to the problem of time
Benjamin Shlaer
Despite the ultraviolet problems with canonical quantum gravity, as an effective field theory its infrared phenomena should enjoy fully quantum mechanical unitary time evolution. C…