299 citations · 752 across the 23 of their papers we have counts for
6 papers · 1 filter
Do DESI-DR2 BAO data imply a coupling of dark matter and dark energy?
Weiqiang Yang, Sibo Zhang, Dinorah Barbosa +3
We revisit an interacting dark matter (DM) -- dark energy (DE) model characterized by the interaction function , where is a constant coupling parameter and is t…
Late-Time Emergence of Dark Energy and Its Interaction with Dark Matter
Sibo Zhang, Weiqiang Yang, Supriya Pan +3
We present an interacting scenario between dark energy (DE) and dark matter (DM), where DE has an emergent nature, that means, DE was absent in the early universe but it becomes ef…
Beyond dynamical dark energy: the role of dark sector interactions after DESI DR2
Weiqiang Yang, Sibo Zhang, Supriya Pan +2
Recent DESI DR2 observations have renewed interest in extensions of the CDM cosmological model, particularly through indications of a time-varying dark energy equation of state.…
When One-Parameter Dark Energy Makes Neutrinos Physical Again
Weiqiang Yang, Eleonora Di Valentino, Eric V. Linder +2
A puzzling implication of current data interpreted in the -Cold Dark Matter cosmology is the preference for a negative sum of neutrino masses. Moving to CDM brings an ap…
When Dark Energy Turns On: Constraints on a Critical Emergence Model
Mahdi Najafi, Mahdi Habibollahi, Masoume Reyhani +4
We investigate a specific emergent dark energy scenario, known as critically emergent dark energy (CEDE), in which dark energy is effectively absent in the early Universe and becom…
Joint Constraints on Neutrinos and Dynamical Dark Energy in Minimally Modified Gravity
Artur Ladeira, Rafael C. Nunes, Supriya Pan +1
The \(w_{\dagger}\)VCDM framework provides a theoretically well-controlled extension of \(Λ\)CDM within the class of minimally modified gravity theories, allowing for flexible cosm…