142 citations · 175 across the 6 of their papers we have counts for
6 papers
Anti-Ultralocality and Plateau Models of Inflation
Joshua Shterenberg, David Garfinkle, Anna I. Rosenzweig +2
Anti-ultralocality refers to the growth of spatial gradient terms relative to velocity terms in the coupled Einstein--scalar field equations. It is a characteristic feature of dece…
Phantom-Crossing Dark Energy and the Tug-of-War
David Shlivko, Vivian Poulin
Recent analyses combining data from the cosmic microwave background (CMB), baryon acoustic oscillations (BAO), and Type Ia supernovae (SN) have revealed a tentative observational p…
Thawing Quintessence: Priors, evidence, and likely trajectories
David Shlivko
We perform a Bayesian comparison between thawing quintessence and a cosmological constant, incorporating theoretically motivated priors on the phenomenological Padé-w parameters us…
Optimal parameterizations for observational constraints on thawing dark energy
David Shlivko, Paul J. Steinhardt, Charles L. Steinhardt
Time-varying dark energy is often modeled in observational analyses through generic parameterizations of its equation of state , which typically use two free parameters $\{w_…
Assessing observational constraints on dark energy
David Shlivko, Paul Steinhardt
Observational constraints on time-varying dark energy ({\it e.g.}, quintessence) are commonly presented on a - plot that assumes the equation of state of dark energy stri…
Trans-Planckian censorship constraints on properties and cosmological applications of axion-like fields
David Shlivko
We use the Trans-Planckian Censorship Conjecture (TCC) to constrain the decay constants characterizing a set of N identical axion-like fields with cosine potentials, improving…