Zobrazeno 1 - 10
of 220
pro vyhledávání: '"Li, Yun‐He"'
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 supernova (SN) data, suggest that dark energy may not be a cosmological
Externí odkaz:
http://arxiv.org/abs/2411.08639
Autor:
Li, Yun-He, Zhang, Xin
Publikováno v:
JCAP 09 (2023) 046
Interacting dark energy (IDE) scenario is a natural and important extension to the standard $\Lambda$CDM cosmology. We develop a full numerical routine, called IDECAMB, as a patch to the public Einstein-Boltzmann solver CAMB, to solve the background
Externí odkaz:
http://arxiv.org/abs/2306.01593
Autor:
Zhang, Zhenyu, Gu, Gan, Wang, Xiaoma, Li, Yun-He, Sabiu, Cristiano G., Park, Hyunbae, Miao, Haitao, Luo, Xiaolin, Fang, Feng, Li, Xiao-Dong
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 the galaxy distribution. By focusing on the redshift dependence, the AP
Externí odkaz:
http://arxiv.org/abs/1902.09794
Publikováno v:
Eur. Phys. J. C 78 (2018) no.10, 865
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 energy model in the context of a perturbed universe, which was never inves
Externí odkaz:
http://arxiv.org/abs/1807.03022
Publikováno v:
In Journal of Integrative Agriculture May 2022 21(5):1424-1435
Publikováno v:
Sci. China-Phys. Mech. Astron. 61, 030011 (2018)
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 the running coupling $b$ by the form $b(a)=b_0a+b_e(1-a)$, where at the
Externí odkaz:
http://arxiv.org/abs/1710.03068
Publikováno v:
JCAP 05 (2017) 040
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 problem in interacting dark energy models, we employ the parameterized
Externí odkaz:
http://arxiv.org/abs/1702.04189
Publikováno v:
Mon. Not. Roy. Astron. Soc. 469 (2017) 1713-1724
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 basic extensions of $\Lambda$ cold dark matter (CDM) model, i.e. the $w$C
Externí odkaz:
http://arxiv.org/abs/1608.01219
Publikováno v:
Phys. Rev. D 93, 023002 (2016)
We test the models of vacuum energy interacting with cold dark matter and try to probe the possible deviation from the $\Lambda$CDM model using current observations. We focus on two specific models, $Q=3\beta H\rho_{\Lambda}$ and $Q=3\beta H\rho_c$.
Externí odkaz:
http://arxiv.org/abs/1506.06349
Publikováno v:
JCAP 09 (2015) 024
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 $\Lambda$CDM and to differentiate possible degeneracies in the interacting dark e
Externí odkaz:
http://arxiv.org/abs/1503.08948