12 papers
Evaporation and fate of covariant quantum black holes
Li-Shuai Wang, Xiangdong Zhang
A growing number of phenomena and theoretical problems indicate that quantum gravity theory is necessary. In this paper, we investigate the evaporation of covariant quantum BHs for…
Critical collapse of a self-interacting scalar field in asymptotically anti-de Sitter spacetime
Li-Jie Xin, Xiangdong Zhang
We study the critical gravitational collapse of a spherically symmetric massless scalar field in asymptotically anti-de Sitter (AdS) spacetime. The scalar field potential adopted h…
Stress-energy tensor of quantized scalar fields in thermal states on a zero-tidal wormhole
Shun Jiang, Xiangdong Zhang
The construction of a static traversable wormhole requires exotic matter that satisfies the Morris-Thorne conditions. Quantum energy-momentum tensors have long been considered the…
Non-singular Inflation-Dark Energy Unification Model Based on Loop Quantum Cosmology and Mass-Varying Neutrinos
Zhiming Shuai, Xiangdong Zhang
Unifying the early-universe inflationary paradigm with late-time cosmic acceleration, while resolving the initial Big Bang singularity, remains one of the most profound challenges…
Distinguishability of magnetic massive black holes from environmental mimics with inspiral gravitational waves
Xulong Yuan, Xiangdong Zhang
In this work, we investigate the ppE waveform imprints induced by the external magnetic fields of Bertotti-Robinson and Bonnor-Melvin black holes, with the aim of distinguishing su…
Quantum Oppenheimer-Snyder primordial black holes as all the dark matter
Li-Shuai Wang, Xiangdong Zhang
Primordial black holes (PBHs) are widely considered as candidates for dark matter in many recent studies, and they are often modeled as Schwarzschild or Kerr black holes (BHs), whi…