540 citations · 4.5k across the 74 of their papers we have counts for
35 papers · 1 filter
Inverse Chameleon Mechanism and Mass Limits for Compact Stars
Hao Wei, Zhong-Xi Yu
As is well known, there are various mass limits for compact stars. For example, the maximum mass for non-rotating white dwarfs is given by the famous Chandrasekhar limit about $1.4…
Neutron Star as a Mirror for Gravitational Waves
Hao Wei, Da-Chun Qiang, Zhong-Xi Yu +1
Gravitational wave (GW) has become one of the most active fields in physics and astronomy since the first direct detection of GW event in 2015. As is well known, multiple images of…
Lemaitre-Tolman-Bondi Static Universe in Rastall-like Gravity
Zhong-Xi Yu, Shou-Long Li, Hao Wei
In this work, we try to obtain a stable Lemaitre-Tolman-Bondi (LTB) static universe, which is spherically symmetric and radially inhomogeneous. However, this is not an easy task, a…
Emergent Universe Scenario, Bouncing and Cyclic Universes in Degenerate Massive Gravity
Shou-Long Li, H. Lü, Hao Wei +2
We consider alternative inflationary cosmologies in massive gravity with degenerate reference metrics and study the feasibilities of the emergent universe scenario, bouncing and cy…
Holographic Entanglement Entropy and Van der Waals transitions in Einstein-Maxwell-dilaton theory
Shou-Long Li, Hao Wei
According to the gauge/gravity duality, the Van der Waals transition of charged AdS black holes in extended phase space is conjectured to be dual to a renormalization group flow on…
Criticality in Gauged Supergravities
Shou-Long Li, Hong-Da Lyu, Hua-Kai Deng +1
AdS black holes show richer transition behaviors in extended phase space by assuming the cosmological constant and its conjugate quantity to behave like thermodynamic pressure and…
Godel Metrics with Chronology Protection in Horndeski Gravities
Wei-Jian Geng, Shou-Long Li, H. Lu +1
Gödel universe, one of the most interesting exact solutions predicted by General Relativity, describes a homogeneous rotating universe containing naked closed time-like curves (CTC…
Model-Independent Constraints on Lorentz Invariance Violation via the Cosmographic Approach
Xiao-Bo Zou, Hua-Kai Deng, Zhao-Yu Yin +1
Since Lorentz invariance plays an important role in modern physics, it is of interest to test the possible Lorentz invariance violation (LIV). The time-lag (the arrival time delay…
Observational Constraints on Varying Alpha in CDM Cosmology
Hao Wei, Dong-Ze Xue
In this work, we consider the so-called CDM cosmology with while the fine-structure "constant" is varying. In this scenario, the accelerated expansion of…
Stability of the Einstein static universe in Eddington-inspired Born-Infeld theory
Shou-Long Li, Hao Wei
By considering the realization of the emergent universe scenario in Eddington-inspired Born-Infeld (EiBI) theory, we study the stability of the Einstein static universe filled with…
Cosmological Constant, Fine Structure Constant and Beyond
Hao Wei, Xiao-Bo Zou, Hong-Yu Li +1
In the present work, we consider the cosmological constant model , which is well motivated from three independent approaches. As is well known, the hint of varying…
New Generalizations of Cosmography Inspired by the Pade Approximant
Ya-Nan Zhou, De-Zi Liu, Xiao-Bo Zou +1
The current accelerated expansion of the universe has been one of the most important fields in physics and astronomy since 1998. Many cosmological models have been proposed in the…
Stability of Differentially Rotating Disks in Theory
Shoulong Li, Hao Wei
To explain the accelerated expansion of our universe, many dark energy models and modified gravity theories have been proposed so far. It is argued in the literature that they are…
Exact Cosmological Solutions of Theories via Hojman Symmetry
Hao Wei, Hong-Yu Li, Xiao-Bo Zou
Nowadays, theory has been one of the leading modified gravity theories to explain the current accelerated expansion of the universe, without invoking dark energy. It is of i…
Hojman Symmetry in Theory
Hao Wei, Ya-Nan Zhou, Hong-Yu Li +1
Today, theory has been one of the popular modified gravity theories to explain the accelerated expansion of the universe without invoking dark energy. In this work, we consi…
non-linear massive gravity and the cosmic acceleration
You Wu, Zu-Cheng Chen, Jiaxin Wang +1
Inspired by the non-linear massive gravity, we propose a new kind of modified gravity model, namely non-linear massive gravity, by adding the dRGT mass term reformula…
Age Problem in Lemaitre-Tolman-Bondi Void Models
Xiao-Peng Yan, De-Zi Liu, Hao Wei
As is well known, one can explain the current cosmic acceleration by considering an inhomogeneous and/or anisotropic universe (which violates the cosmological principle), without i…
Post-Newtonian Approximation of Teleparallel Gravity Coupled with a Scalar Field
Zu-Cheng Chen, You Wu, Hao Wei
We use the parameterized post-Newtonian (PPN) formalism to explore the weak field approximation of teleparallel gravity non-minimally coupling to a scalar field , with arbitrary…
Cosmological Evolution of Einstein-Aether Models with Power-law-like Potential
Hao Wei, Xiao-Peng Yan, Ya-Nan Zhou
The so-called Einstein-Aether theory is General Relativity coupled (at second derivative order) to a dynamical unit time-like vector field (the aether). It is a Lorentz-violating t…
Quasi-Rip: A New Type of Rip Model without Cosmic Doomsday
Hao Wei, Long-Fei Wang, Xiao-Jiao Guo
The fate of our universe is an unceasing topic of cosmology and the human being. The discovery of the current accelerated expansion of the universe significantly changed our view o…
Pilgrim Dark Energy
Hao Wei
In the present work, we reconsider the idea of holographic dark energy. One of its key points is the formation of the black hole. And then, we propose the so-called "pilgrim dark e…
Noether Symmetry in Theory
Hao Wei, Xiao-Jiao Guo, Long-Fei Wang
As is well known, symmetry plays an important role in the theoretical physics. In particular, the well-known Noether symmetry is an useful tool to select models motivated at a fund…
Dynamics of Teleparallel Dark Energy
Hao Wei
Recently, Geng et al. proposed to allow a non-minimal coupling between quintessence and gravity in the framework of teleparallel gravity, motivated by the similar one in the framew…
Constraining Theories with the Varying Gravitational Constant
Hao Wei, Hao-Yu Qi, Xiao-Peng Ma
As is well known, a varying effective gravitational "constant" is one of the common features of most modified gravity theories. Of course, as a modified gravity theory, theo…