21 citations · 107 across the 14 of their papers we have counts for
14 papers
Periodic orbits and gravitational waveforms of black holes in bumblebee gravity
Zijian Shi, Xiangdong Zhang, Yunlong Liu
In this paper, we investigate the dynamics of massive particles and the associated gravitational waveforms in the spacetime of a black hole within the framework of Einstein-Bumbleb…
Periodic orbits and gravitational waveforms of spinning particles in nonlocal Gravity
Moisés Bravo-Gaete, Jianhui Lin, Yunlong Liu +1
In this paper, we investigate the dynamics and gravitational-wave signatures of periodic orbits of spinning test particles moving in the equatorial plane around static, spherically…
Solar-system experimental constraints on nonlocal gravity
Yunlong Liu, Yongbin Du
In this work, we study the constraints on the characteristic parameters of the Deser-Woodard nonlocal gravity model in a static and spherically symmetric background, using…
Quasinormal modes and tidal Love numbers of covariant effective quantum black holes with cosmological constant
Yunlong Liu, Xiangdong Zhang
This paper systematically investigates the quasinormal modes (QNMs) and tidal Love numbers of covariant quantum-modified black holes (BHs) within two cosmological constant-dependen…
Spinning Particle Dynamics and ISCO in Covariant Loop Quantum Gravity
Yongbin Du, Yunlong Liu, Xiangdong Zhang
In this paper, we investigate the motion of spinning particles in the background of covariant loop quantum gravity black holes, focusing on two distinct effective metric solutions.…
Analytic solutions for the motion of spinning particles near brane-world black hole
Yunlong Liu, Xiangdong Zhang
The general motion of spinning test particles to the leading order approximation of spin in the brane-world spacetime is investigated. Analytical integrations for the equations of…
Gravitational waves for eccentric extreme mass ratio inspirals of self-dual spacetime
Yunlong Liu, Xiangdong Zhang
In this paper, we calculate the frequencies of geodesic orbits in self-dual spacetime on the equatorial plane and obtain the leading-order effects of loop quantum parameters on…
Quasinormal modes of the Bardeen black hole with a cloud of strings
Yunlong Liu, Xiangdong Zhang
We investigate the quasinormal mode and greybody factor of Bardeen black holes with a string clouds by WKB approximation and verify them by Prony algorithm. We found that the imagi…
Solar system constraints of a polymer black hole in loop quantum gravity
Yun-Long Liu, Zhao-Qing Feng, Xiang-Dong Zhang
A new polymer black hole solution in loop quantum gravity was proposed recently. The difference between the polymer black hole and Schwarzschild black hole is captured by a quantum…
Collisional Penrose process with spinning particles in braneworld black hole
Yongbin Du, Yunlong Liu, Xiangdong Zhang
The Penrose process of an extremal braneworld black hole is studied. We analyze the Penrose process by two massive spinning particles collide near the horizon. By calculating the m…
Energy conditions in new model of loop quantum cosmology
Gaoping Long, Yunlong Liu, Xiangdong Zhang
Recently, a de-Sitter epoch has been found in the new model of loop quantum cosmology which is governed by the scalar constraint with both of Euclidean and Lorentz terms. The singu…
Collision of spinning particles near BTZ black holes
Xulong Yuan, Yunlong Liu, Xiangdong Zhang
We study the collision property of spinning particles near a Bañados-Teitelboim-Zanelli (BTZ) black hole. Our results show that although the center-of-mass energy of two ingoing pa…
Maximal efficiency of the collisional Penrose process with spinning particles in Kerr-Sen black hole
Yunlong Liu, Xiangdong Zhang
We study the collision of two uncharged spinning particles around an extreme Kerr-Sen black hole and calculate the maximal efficiency of the energy extraction from the Kerr-Sen bla…
Kerr-de Sitter and Kerr-anti-de Sitter black holes as accelerators for spinning particles
Songming Zhang, Yunlong Liu, Xiangdong Zhang
It is shown that the Kerr black hole could act as accelerators for spinning particles. In principle, it could obtain arbitrarily high energy for extremal Kerr black hole. In this p…