48 citations · 183 across the 16 of their papers we have counts for
18 papers
Reconstructing the evolution of deceleration parameter with the Lagrange interpolation method
Kaituo Zhang, Bing Xu, Hongwei Yu +1
In this paper, we reconstruct the evolution of the deceleration parameter using cubic and quartic Lagrange interpolation methods, based on the latest observational data. This data…
Observational constraints on fractional holographic dark energy in the light of DESI DR2
Qihong Huang, Yuchen Zhang, Bing Xu +1
Based on the fractional entropy from fractional quantum mechanics, fractional holographic dark energy (FHDE) has been proposed with the Hubble horizon as the IR cutoff (FHDEH). We…
New tests of cosmic distance duality relation with DESI 2024 BAO observations
Qiumin Wang, Shuo Cao, Jianyong Jiang +5
In this paper, we test the cosmic distance duality relation (CDDR), as required by the Etherington reciprocity theorem, which connects the angular diameter distance and the luminos…
Holographic inflation and holographic dark energy from entropy of the anti-de Sitter black hole
Qihong Huang, He Huang, Bing Xu +1
Based on the entropy of anti-de Sitter black hole, a new holographic dark energy model has been proposed. When the Hubble horizon and particle horizon are chosen as the IR cutoff,…
Testing the cosmic distance duality relation using Type Ia supernovae and BAO observations
Fan Yang, Xiangyun Fu, Bing Xu +3
In this work, we propose to utilize the observed ratio of spherically-averaged distance to the sound horizon scale from Baryon Acoustic Oscillation (BAO) data to test the cosmic di…
Testing the cosmic distance duality relation using Type Ia supernovae and radio quasars through model-independent methods
Fan Yang, Xiangyun Fu, Bing Xu +3
In this work, we perform a cosmological-model-independent test on the cosmic distance duality relation (CDDR) by comparing the angular diameter distance (ADD) obtained from the com…
Evolution of the early universe in Einstein-Cartan theory
Qihong Huang, He Huang, Bing Xu +1
Einstein--Cartan theory is a generalization of general relativity that introduces spacetime torsion. In this paper, we perform phase space analysis to investigate the evolution of…
Constant-roll inflation and primordial black holes within Barrow entropic framework
Qihong Huang, Li-Yang Chen, He Huang +2
In this paper, starting from the modified Einstein field equations, we derive the modified scalar spectral index and the modified tensor-to-scalar ratio in Barrow entro…
Joint Constraints on the Hubble Constant, Spatial Curvature, and Sound Horizon from the Late-time Universe with Cosmography
Kaituo Zhang, Tianyao Zhou, Bing Xu +2
In this paper, using the latest Pantheon+ sample of Type Ia supernovae (SNe Ia), Baryon Acoustic Oscillation (BAO) measurements, and observational Hubble data (OHD), we carry out a…
Model-independent test for the cosmic distance duality relation with Pantheon and eBOSS DR16 quasar sample
Bing Xu, Zhenzhen Wang, Kaituo Zhang +2
In this paper, we carry out a new model-independent cosmological test for the cosmic distance duality relation~(CDDR) by combining the latest five baryon acoustic oscillations (BAO…
CMB power spectrum in the emergent universe with k-essence
Qihong Huang, Kaituo Zhang, He Huang +2
The emergent universe provides a possible method to avoid the big bang singularity by considering that the universe stems from an stable Einstein static universe rather than the si…
Analytical approximations for primordial power spectra in a spatially closed emergent universe
Qihong Huang, Kaituo Zhang, Zhenxing Fang +1
The emergent universe scenario was proposed to solve the big bang singularity by suggesting that the universe originates from an Einstein static state and then evolves into a subse…
Running vacuum model in non-flat universe
Chao-Qiang Geng, Yan-Ting Hsu, Lu Yin +1
We investigate observational constraints on the running vacuum model (RVM) of in the spatially curved universe, where is the model parameter, corres…
Cosmological perturbation and matter power spectrum in bimetric massive gravity
Chao-Qiang Geng, Chung-Chi Lee, Kaituo Zhang
We discuss the linear perturbation equations with the synchronous gauge in a minimal scenario of the bimetric massive gravity theory. We find that the matter density perturbation a…
Running cosmological constant with observational tests
Chao-Qiang Geng, Chung-Chi Lee, Kaituo Zhang
We investigate the running cosmological constant model with dark energy linearly proportional to the Hubble parameter, , in which the CDM limit is recovered by taki…
Emergent universe in spatially flat cosmological model
Kaituo Zhang, Puxun Wu, Hongwei Yu
The scenario of an emergent universe provides a promising resolution to the big bang singularity in universes with positive or negative spatial curvature. It however remains unclea…
Oscillating universe in the DGP braneworld
Kaituo Zhang, Puxun Wu, Hongwei Yu
With a method in which the Friedmann equation is written in a form such that evolution of the scale factor can be treated as that of a particle in a "potential", we classify all po…
The stability of Einstein static universe in the DGP braneworld
Kaituo Zhang, Puxun Wu, Hongwei Yu
The stability of an Einstein static universe in the DGP braneworld scenario is studied in this paper. Two separate branches denoted by of the DGP model are analyzed. Assum…