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13 papers · 2 filters
Nonexistence of quantum black and white hole horizons in an improved dynamic approach
Wen-Cong Gan, Xiao-Mei Kuang, Zhen-Hao Yang +3
In this paper, we study the quantum geometric effects near the locations where classical black hole horizons used to appear in Einstein's classical theory, within the framework of…
Power Spectra of Slow-Roll inflation in the consistent Einstein-Gauss-Bonnet gravity
Tian-Chen Li, Tao Zhu, Anzhong Wang
The slow-roll inflation which took place at extremely high energy regimes is in general believed to be sensitive to the high-order curvature corrections to the classical general re…
Gravitational wave constraints on spatial covariant gravities
Tao Zhu, Wen Zhao, Anzhong Wang
The direct discovery of gravitational waves (GWs) from the coalescence of compact binary components by the LIGO/Virgo/KAGRA Collaboration provides an unprecedented opportunity for…
Polarized primordial gravitational waves in spatial covariant gravities
Tao Zhu, Wen Zhao, Anzhong Wang
The spatial covariant gravities provide a natural way to including odd-order spatial derivative terms into the gravitational action, which breaks the parity symmetry at gravitation…
Detecting sublunar-mass primordial black holes with the Earth-Moon binary system
Ya-Ling Li, Guo-Qing Huang, Zong-Qiang Huang +1
In this paper we propose a new way to detect sublunar-mass primordial black holes (PBHs) by direct observations of the Earth-Moon binary system.Our method is based on treating PBH…
Universal horizons and black hole spectroscopy in gravitational theories with broken Lorentz symmetry
Chao Zhang, Anzhong Wang, Tao Zhu
The violation of Lorentz invariance (LI) in gravitational theories, which allows superluminal propagations, dramatically alters the causal structure of the spacetime and modifies t…