299 citations · 1k across the 33 of their papers we have counts for
13 papers · 1 filter
Reheating in quintessential inflation via gravitational production of heavy massive particles: A detailed analysis
Jaume Haro, Weiqiang Yang, Supriya Pan
An improved version of the well-known Peebles-Vilenkin model unifying early inflationary era to current cosmic acceleration, is introduced in order to match with the theoretical va…
Reconstructing the dark matter and dark energy interaction scenarios from observations
Weiqiang Yang, Narayan Banerjee, Andronikos Paliathanasis +1
We consider a class of interacting dark energy models in a flat and nonflat FLRW universe where the interaction is characterized by the modified evolution of the pressureless dark…
Future Constraints on Dynamical Dark-Energy using Gravitational-Wave Standard Sirens
Minghui Du, Weiqiang Yang, Lixin Xu +2
The detection of gravitational waves (GW) by the LIGO and Virgo collaborations offers a whole new range of possible tests and opens up a new window which may shed light on the natu…
Observational constraints on dynamical dark energy with pivoting redshift
Weiqiang Yang, Supriya Pan, Eleonora Di Valentino +1
We investigate the generalized Chevallier-Polarski-Linder (CPL) parametrization, which contains the pivoting redshift as an extra free parameter. We use various data combinat…
Constraints on quintessence scalar field models using cosmological observations
Weiqiang Yang, M. Shahalam, Barun Pal +2
We consider a varieties of quintessence scalar field models in a homogeneous and isotropic geometry of the universe with zero spatial curvature aiming to provide stringent constrai…
Observational constraints on one-parameter dynamical dark-energy parametrizations and the tension
Weiqiang Yang, Supriya Pan, Eleonora Di Valentino +2
The phenomenological parametrizations of dark-energy (DE) equation of state can be very helpful, since they allow for the investigation of its cosmological behavior despite the fac…