299 citations · 882 across the 40 of their papers we have counts for
10 papers · 1 filter
Testing time-delayed cosmology
C. J. Palpal-latoc, Reginald Christian Bernardo, Ian Vega
Motivated by the proposed time-delayed cosmology in the primordial inflationary era, we consider the application of the delayed Friedmann equation in the late-time Universe and exp…
Confronting quantum-corrected teleparallel cosmology with observations
Reginald Christian Bernardo, Che-Yu Chen, Jackson Levi Said +1
It has been shown that at the semi-classical order, gravitational theories with quantum fluctuations can be effectively recast as modified theories of gravity with non-minimal grav…
Parametric and nonparametric methods hint dark energy evolution
Reginald Christian Bernardo, Daniela Grandón, Jackson Levi Said +1
We study dark energy through the viewpoints of parametric and nonparametric analyses of late-time cosmological data. We consider four Hubble parameter priors reflecting the Hubble…
Inflationary quantum dynamics and backreaction using a classical-quantum correspondence
Reginald Christian Bernardo
We study inflationary dynamics using a recently introduced classical-quantum correspondence for investigating the backreaction of a quantum mechanical degree of freedom to a classi…
Well-Tempered Minkowski Solutions in Teleparallel Horndeski Theory
Reginald Christian Bernardo, Jackson Levi Said, Maria Caruana +1
Well-tempering stands among the few classical methods of screening vacuum energy to deliver a late-time, low energy vacuum state. We build on the class of Horndeski models that adm…
Towards a model-independent reconstruction approach for late-time Hubble data
Reginald Christian Bernardo, Jackson Levi Said
Gaussian processes offers a convenient way to perform nonparametric reconstructions of observational data assuming only a kernel which describes the covariance between neighbouring…
Well-tempered teleparallel Horndeski cosmology: a teleparallel variation to the cosmological constant problem
Reginald Christian Bernardo, Jackson Levi Said, Maria Caruana +1
Well-tempering is a promising classical method of dynamically screening an arbitrarily large vacuum energy and generating a late-time, low energy de Sitter vacuum state. In this pa…
A data-driven Reconstruction of Horndeski gravity via the Gaussian processes
Reginald Christian Bernardo, Jackson Levi Said
We reconstruct the Hubble function from cosmic chronometers, supernovae, and baryon acoustic oscillations compiled data sets via the Gaussian process (GP) method and use it to draw…
Gravitational wave signatures from dark sector interactions
Reginald Christian Bernardo
We show that the gravitational waves generated by the perturbations of general relativistic black holes can be considered as a direct probe of the existence of dark sector interact…
Self-tuning kinetic gravity braiding: Cosmological dynamics, shift symmetry, and the tadpole
Reginald Christian Bernardo
We study the self-tuning subclass of kinetic gravity braiding and obtain robust predictions on self-tuning and dynamics in the tadpole-free shift symmetric sector of the theory. In…