6 papers
Effects of the inflaton mass on the pre-inflationary dynamics and primordial power spectra in loop quantum cosmology
Kui Xiao, Abolhassan Mohammadi, Hongwei Tan
Considering the mass parameters as free phenomenological parameters, we investigate inflation driven by a canonical scalar field with different potentials in LQC. We find that a sm…
Starobinsky Inflation in k-Essence Framework: Attractor Dynamics, Reheating, and Consistency with ACT DR6
Abolhassan Mohammadi, Yogesh, Hongwei Tan +1
The recent ACT DR6 has shifted the preferred value of the scalar spectral index upward so that many well-established inflationary models have been disfavoured, including the Starob…
Quantum Oppenheimer-Snyder black hole evaporation and its fate
Hongwei Tan, Kui Xiao, Rong-zhen Guo +1
In this paper, we investigate the evaporation of the quantum Oppenheimer-Snyder black hole. Within a semiclassical framework, we compute the energy emission of Hawking radiation by…
Null infinity as Chern-Simons theories and its quantization
Hongwei Tan, Kui Xiao, Shoucheng Wang
This paper studies the quantization of the future null infinity () of an asymptotically flat spacetime. Based on the observation by Ashtekar and Speziale that $\math…
Massive particles tunneling from quantum Oppenheimer-Snyder black holes and black hole entropy
Hongwei Tan, Kui Xiao
In this paper, we investigate the tunneling process of massive scalar particles from a quantum Oppenheimer-Snyder black hole using the tunneling approach proposed by Parikh and Wil…
Black hole tunneling in loop quantum gravity
Hongwei Tan, Rong-Zhen Guo, Jingyi Zhang
In this paper, we investigate the Hawking radiation of the quantum Oppenheimer- Snyde black hole with the tunneling scheme by Parikh and Wilczek. We calculate the emission rate of…