344 citations · 3.6k across the 106 of their papers we have counts for
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Constraining inflation with nonminimal derivative coupling with the Parkes Pulsar Timing Array third data release
Chang Han, Li-Yang Chen, Zu-Cheng Chen +13
We study an inflation model with nonminimal derivative coupling that features a coupling between the derivative of the inflaton field and the Einstein tensor. This model naturally…
Alleviating the Hubble-constant tension and the growth tension via a transition of absolute magnitude favored by the Pantheon+ sample
Yang Liu, Hongwei Yu, Puxun Wu
We establish a cosmological-model-independent method to extract the apparent magnitude and its derivative at different redshifts from the Pantheon+ type Ia supernova sample, and fi…
Constraints on Cosmological Models from Quasars Calibrated with Type Ia Supernova by a Gaussian Process
Haixiang Zhang, Yang Liu, Hongwei Yu +3
In this paper, we use quasars calibrated from type Ia supernova (SN Ia) to constrain cosmological models. We consider three different X-ray luminosity () - ultraviolet lumin…
Resonant amplification of curvature perturbations in inflation model with periodical derivative coupling
Li-Yang Chen, Hongwei Yu, Puxun Wu
In this paper, we introduce a weak, transient and periodical derivative coupling between the inflaton field and gravity, and find that the square of the sound speed of the curvatur…
NANOGrav hints for first-order confinement-deconfinement phase transition in different QCD-matter scenarios
Zu-Cheng Chen, Shou-Long Li, Puxun Wu +1
Recent observations from several pulsar timing array (PTA) collaborations have unveiled compelling evidence for a stochastic signal in the nanohertz band. This signal aligns remark…
Observations favor the redshift-evolutionary - relation of quasars from copula
Bao Wang, Yang Liu, Hongwei Yu +1
We compare, with data from the quasars, the Hubble parameter measurements, and the Pantheon+ type Ia supernova, three different relations between X-ray luminosity () and ultra…