21 citations · 47 across the 15 of their papers we have counts for
16 papers
Orbits of photon in Bardeen-boson stars and their frozen states
Long-Xing Huang, Shi-Xian Sun, Yu-Peng Zhang +2
In a recent study [1], the Bardeen-boson star (BBS) model involving a scalar field minimally coupled to Einstein gravity and a Bardeen's nonlinear electromagnetic field was investi…
Bardeen Spacetime with Charged Dirac Field
Shi-Xian Sun, Long-Xing Huang, Zhen-Hua Zhao +1
In this article, we investigate soliton solutions in a system involving a charged Dirac field minimally coupled to Einstein gravity and the Bardeen field. We analyze the impact of…
Bardeen spacetime with charged scalar field
Long-Xing Huang, Shi-Xian Sun, Yong-Qiang Wang
Recently, Ref. \cite{Wang:2023tdz} investigated the model of Einstein-Bardeen theory coupled to a free complex scalar field. The introduction of the scalar field prevents the forma…
Chains of Rotating mini-Boson Stars
Shi-Xian Sun, Yong-Qiang Wang
In this article, we investigate the stationary, soliton-like solutions in the model of the Einstein gravity coupled to a free and complex scalar field, and extend chains of mini-bo…
Rotating multistate Proca stars
Rong Zhang, Long-Xing Huang, Yong-Qiang Wang
In this paper, we construct the rotating multistate Proca stars (RMPSs) composed of two coexisting Proca fields including the ground state and first excited state. We consider the…
Frozen Bardeen-Dirac stars and light ball
Long-Xing Huang, Shi-Xian Sun, Yong-Qiang Wang
In this paper, we study solutions of a static spherically symmetric system, which is composed of the coupling with the Bardeen action and two Dirac fields. For the case where only…
-Dirac stars
Shi-Xian Sun, Si-Yuan Cui, Long-Xing Huang +1
In this paper, we construct a Dirac star model composed of pairs of spinor fields. The azimuthal harmonic indeces of these spinor fields are half-integers, and they satis…
Fate of initially bound timelike geodesics in spherical boson stars
Yu-Peng Zhang, Shi-Xian Sun, Yong-Qiang Wang +3
Boson stars are horizonless compact objects and they could possess novel geodesic orbits under the equilibrium assumption, which differ from those in black hole backgrounds. Howeve…
Excited Dirac stars with higher azimuthal harmonic index
Long-Xing Huang, Shi-Xian Sun, Rong Zhang +2
In this paper, we investigate the properties of the first excited state Dirac stars (DSs) with higher azimuthal harmonic index (specifically, the azimuthal harmonic indexes =…
Emergency of black holes from wormholes
Chen-Hao Hao, Shi-Xian Sun, Long-Xing Huang +3
In this paper, we study the spherically symmetric Dirac star model in the presence of a phantom field, obtaining a traversable wormhole solution in non-trivial topological spacetim…
Rotating multistate axion boson stars
Yan-Bo Zeng, Shi-Xian Sun, Si-Yuan Cui +2
We consider excited configuration and multistate configuration of rotating axion boson stars~(RABSs).RABSs are asymptotically flat, stationary, spinning, horizonless solutions of E…
Multi-state Dirac stars
Chen Liang, Shi-Xian Sun, Ji-Rong Ren +1
In this paper, we construct the multi-state Dirac stars (MSDSs) consisting of two pairs of Dirac fields. The two pairs of Dirac fields are in the ground state and the first excited…
Chains of mini-boson stars
Shi-Xian Sun, Yong-Qiang Wang, Li Zhao
In this paper, we re-investigate the stationary, soliton-like solutions in the model of the Einstein gravity coupled to a free and complex scalar field, which have been known as mi…
Dirac-boson stars
Chen Liang, Ji-Rong Ren, Shi-Xian Sun +1
In this paper, we construct \textit{Dirac-boson stars} (DBSs) model composed of a scalar field and two Dirac fields. The scalar field and both Dirac fields are in the ground state.…
Rotating hybrid axion-miniboson stars
Yan-Bo Zeng, Hong-Bo Li, Shi-Xian Sun +2
We construct rotating hybrid axion-miniboson stars (RHABSs), which are asymptotically flat, stationary, axially symmetric solutions of (3+1)-dimensional Einstein-Klein-Gordon theor…
Obstacles to Constructing de Sitter Space in String Theory
Michael Dine, Jamie A. P. Law-Smith, Shijun Sun +2
There have been many attempts to construct de Sitter space-times in string theory. While arguably there have been some successes, this has proven challenging, leading to the de Sit…