7 papers
3-form dark energy and cosmic birefringence
Kohei Kamada, Tucker Manton
3-forms are interesting fields to study in the cosmological context for numerous reasons, such as being candidates for explaining inflation and dark energy. The background evolutio…
Phantom crossing from the Standard Model and General Relativity
Jinglong Liu, Tucker Manton, Yifu Cai +1
Suggestions of a late-time phantom crossing from DESI baryon acoustic oscillation measurements, combined with cosmic microwave background and Type-Ia supernova observations, have r…
Beyond general relativity: gravitational waves in non-minimally coupled theories
Stephon Alexander, Tatsuya Daniel, Tucker Manton
Non-minimal couplings between matter and curvature tensors arise in many different contexts. Such couplings modify solutions of general relativity (GR) and therefore can be probed…
Black Hole Interiors as a Laboratory for Time-Dependent Classical Double Copy
Damien A. Easson, Tucker Manton
The classical double copy provides a powerful bridge between gravity and gauge theory, but its most explicit realizations remain concentrated in stationary or highly symmetric sett…
The Kalb-Ramond field and Gravitational Parity Violation
Tucker Manton, Stephon Alexander
Gravitational wave physics can probe theories that extend beyond General Relativity. Motivated by the attention on the Kalb-Ramond field as a dark matter candidate, in this work, w…
Detecting the -axiverse through parametric resonance
Stephon Alexander, Geoff Beck, Santiago Loane +1
Axions are a leading dark matter candidate. In this work, we study the detectability of a multi-axion-like model, dubbed the -axiverse, that is distinguishable from the string a…