97 citations · 1.3k across the 32 of their papers we have counts for
32 papers
Dark Energy in the DESI Era: A Brief Review of Evidence, Beyond-CDM Interpretations, and Tensions
Tian-Nuo Li, Guo-Hong Du, Hao Wang +3
Recent baryon acoustic oscillation measurements from DESI provide important new clues for reassessing whether the standard CDM model offers a sufficient description of the late-…
Nonminimally coupled quintessence with sign-switching interaction
Jia-Qi Wang, Rong-Gen Cai, Zong-Kuan Guo +3
We propose a new nonminimally coupled quintessence model to account for the late-time dark energy dynamics indicated by recent Dark Energy Spectroscopic Instrument (DESI) measureme…
Robust Preference for Dark Sector Interactions
Tian-Nuo Li, William Giarè, Guo-Hong Du +4
Recent DESI baryon acoustic oscillation data reveal deviations from CDM cosmology, conventionally attributed to dynamical dark energy (DE). We demonstrate that these deviations…
Robust evidence for dynamical dark energy in light of DESI DR2 and joint ACT, SPT, and Planck data
Tian-Nuo Li, Guo-Hong Du, Sheng-Han Zhou +3
Recent baryon acoustic oscillation (BAO) measurements released by DESI, when combined with cosmic microwave background (CMB) data and type Ia supernova (SN) data, suggest a signifi…
Updated constraints on interacting dark energy: A comprehensive analysis using multiple CMB probes, DESI DR2, and supernovae observations
Tian-Nuo Li, Guo-Hong Du, Yun-He Li +4
Recent DESI baryon acoustic oscillation (BAO) measurements, combined with Planck cosmic microwave background (CMB) data and DESY5 type Ia supernova (SN) data, indicate a significan…
Cosmic sign-reversal: non-parametric reconstruction of interacting dark energy with DESI DR2
Yun-He Li, Xin Zhang
A direct interaction between dark energy and dark matter provides a natural and important extension to the standard CDM cosmology. We perform a non-parametric reconstruction of…
Probing the sign-changeable interaction between dark energy and dark matter with DESI baryon acoustic oscillations and DES supernovae data
Tian-Nuo Li, Guo-Hong Du, Yun-He Li +4
There is a possibility of interaction between dark energy and dark matter, and this interaction may also undergo a sign change during the evolution of the universe. In this paper,…
Revisiting holographic dark energy after DESI 2024
Tian-Nuo Li, Yun-He Li, Guo-Hong Du +4
New insights from the Dark Energy Spectroscopic Instrument (DESI) 2024 baryon acoustic oscillations (BAO) data, in conjunction with cosmic microwave background (CMB) and Type Ia su…
IDECAMB: an implementation of interacting dark energy cosmology in CAMB
Yun-He Li, Xin Zhang
Interacting dark energy (IDE) scenario is a natural and important extension to the standard CDM cosmology. We develop a full numerical routine, called IDECAMB, as a patch to the…
Non-parametric dark energy reconstruction using the tomographic Alcock-Paczynski test
Zhenyu Zhang, Gan Gu, Xiaoma Wang +7
The tomographic Alcock-Paczynski (AP) method can result in tight cosmological constraints by using small and intermediate clustering scales of the large scale structure (LSS) of th…
Exploring interacting holographic dark energy in a perturbed universe with parameterized post-Friedmann approach
Lu Feng, Yun-He Li, Fei Yu +2
The model of holographic dark energy in which dark energy interacts with dark matter is investigated in this paper. In particular, we consider the interacting holographic dark ener…
Probing the sign-changeable interaction between dark energy and dark matter with current observations
Juan-Juan Guo, Jing-Fei Zhang, Yun-He Li +2
We consider the models of vacuum energy interacting with cold dark matter in this study, in which the coupling can change sigh during the cosmological evolution. We parameterize th…
Weighing neutrinos in the scenario of vacuum energy interacting with cold dark matter: application of the parameterized post-Friedmann approach
Rui-Yun Guo, Yun-He Li, Jing-Fei Zhang +1
We constrain the neutrino mass in the scenario of vacuum energy interacting with cold dark matter by using current cosmological observations. To avoid the large-scale instability p…
Constraining neutrino mass and extra relativistic degrees of freedom in dynamical dark energy models using Planck 2015 data in combination with low-redshift cosmological probes: basic extensions to CDM cosmology
Ming-Ming Zhao, Yun-He Li, Jing-Fei Zhang +1
We investigate how the properties of dark energy affect the cosmological measurements of neutrino mass and extra relativistic degrees of freedom. We limit ourselves to the most bas…
Testing models of vacuum energy interacting with cold dark matter
Yun-He Li, Jing-Fei Zhang, Xin Zhang
We test the models of vacuum energy interacting with cold dark matter and try to probe the possible deviation from the CDM model using current observations. We focus on two spec…
Probing cosmology with sterile neutrinos via measurements of scale-dependent growth rate of structure
Yun-He Li, Jing-Fei Zhang, Xin Zhang
In this paper, we constrain the dimensionless Compton wavelength parameter of gravity as well as the mass of sterile neutrino by using the cosmic microwave background…
Neutrinos in the holographic dark energy model: constraints from latest measurements of expansion history and growth of structure
Jing-Fei Zhang, Ming-Ming Zhao, Yun-He Li +1
The model of holographic dark energy (HDE) with massive neutrinos and/or dark radiation is investigated in detail. The background and perturbation evolutions in the HDE model are c…
A closer look at interacting dark energy with statefinder hierarchy and growth rate of structure
Jing-Lei Cui, Lu Yin, Ling-Feng Wang +2
We investigate the interacting dark energy models by using the diagnostics of statefinder hierarchy and growth rate of structure. We wish to explore the deviations from CDM and…
Redshift drift exploration for interacting dark energy
Jia-Jia Geng, Yun-He Li, Jing-Fei Zhang +1
By detecting redshift drift in the spectra of Lyman- forest of distant quasars, Sandage-Loeb (SL) test directly measures the expansion of the universe, covering the "redshift de…
Exploring the full parameter space for an interacting dark energy model with recent observations including redshift-space distortions: Application of the parametrized post-Friedmann approach
Yun-He Li, Jing-Fei Zhang, Xin Zhang
Dark energy can modify the dynamics of dark matter if there exists a direct interaction between them. Thus a measurement of the structure growth, e.g., redshift-space distortions (…
Measuring growth index in a universe with sterile neutrinos
Jing-Fei Zhang, Yun-He Li, Xin Zhang
Consistency tests for the general relativity (GR) can be performed by constraining the growth index using the measurements of redshift-space distortions (RSD) in conjunction wi…
Tilt of primordial gravitational wave spectrum in a universe with sterile neutrinos
Yun-He Li, Jing-Fei Zhang, Xin Zhang
In this work, we constrain the spectral index of the primordial gravitational wave power spectrum in a universe with sterile neutrinos by using the Planck temperature data, t…
Parametrized Post-Friedmann Framework for Interacting Dark Energy
Yun-He Li, Jing-Fei Zhang, Xin Zhang
Dark energy might directly interact with cold dark matter. However, in such a scenario, an early-time large-scale instability occurs occasionally, which may be due to the incorrect…
Cosmological constraints on neutrinos after BICEP2
Jing-Fei Zhang, Yun-He Li, Xin Zhang
Since the B-mode polarization of the cosmic microwave background (CMB) was detected by the BICEP2 experiment and an unexpectedly large tensor-to-scalar ratio, $r=0.20^{+0.07}_{-0.0…