94 citations · 321 across the 12 of their papers we have counts for
12 papers
On Hybrid Monodromy Inflation (Hic Sunt Dracones)
Nemanja Kaloper, Morgane König, Albion Lawrence +1
We revisit two-field hybrid inflation as an effective field theory for low-scale inflation with sub-Planckian scalar field ranges. We focus on a prototype model by Stewart because…
Existence of Life in 2 + 1 Dimensions
J. H. C. Scargill
There are anthropic reasons to suspect that life in more than three spatial dimensions is not possible, and if the same could be said of fewer than three, then one would have an an…
de Sitter Branes in a Flat Bulk of Massive Gravity
Nemanja Kaloper, James H. C. Scargill
We construct de Sitter branes in a flat bulk of massive gravity in . We find two branches of solutions, reminiscent of the normal and self-accelerating branches in DGP, but wit…
Quantum Cosmic No-Hair Theorem and Inflation
Nemanja Kaloper, James Scargill
We consider implications of the quantum extension of the inflationary no hair theorem. We show that when the quantum state of inflation is picked to ensure the validity of the EFT…
Barnacles and Gravity
James H. C. Scargill
Theories with more than one vacuum allow quantum transitions between them, which may proceed via bubble nucleation; theories with more than two vacua posses additional decay modes…
Strong-coupling scales and the graph structure of multi-gravity theories
James H. C. Scargill, Johannes Noller
In this paper we consider how the strong-coupling scale, or perturbative cutoff, in a multi-gravity theory depends upon the presence and structure of interactions between the diffe…
An anisotropic universe due to dimension-changing vacuum decay
James H. C. Scargill
In this paper we consider the question of observational signatures of a false vacuum decay event in the early universe followed by a period of inflation; in particular, motivated b…
The decoupling limit of Multi-Gravity: Multi-Galileons, Dualities and More
Johannes Noller, James H. C. Scargill
In this paper we investigate the decoupling limit of a particular class of multi-gravity theories, i.e. of theories of interacting spin-2 fields. We explicitly compute the interact…
Cycles of interactions in multi-gravity theories
James H. C. Scargill, Johannes Noller, Pedro G. Ferreira
In this paper we study multi-gravity (multi-metric and multi-vielbein) theories in the presence of cycles of interactions (cycles in the so-called `theory graph'). It has been conj…
Interacting spin-2 fields in the Stueckelberg picture
Johannes Noller, James H. C. Scargill, Pedro G. Ferreira
We revisit and extend the `Effective field theory for massive gravitons' constructed by Arkani-Hamed, Georgi and Schwartz in the light of recent progress in constructing ghost-free…
Cosmology with Eddington-inspired Gravity
James H. C. Scargill, Maximo Banados, Pedro G. Ferreira
We study the dynamics of homogeneous, isotropic universes which are governed by the Eddington-inspired alternative theory of gravity which has a single extra parameter, . Previo…
Inferring Core-Collapse Supernova Physics with Gravitational Waves
J. Logue, C. D. Ott, I. S. Heng +2
Stellar collapse and the subsequent development of a core-collapse supernova explosion emit bursts of gravitational waves (GWs) that might be detected by the advanced generation of…