3 papers
gr-qc2026
Why Barriola--Vilenkin Global Monopoles Cannot Rotate?
Yi Lu, Xiao-Yin Pan, Meng-Yun Lai +1
The Barriola--Vilenkin global monopoles are topological defects predicted by certain grand unified theories and have been extensively studied for their astrophysical and cosmologic…
gr-qc2025
Finite-Distance Gravitational Lensing of a Global Monopole in a Schwarzschild-de Sitter Spacetime
Yi Lu, Xiao-Yin Pan, Meng-Yun Lai +1
We investigate the gravitational lensing of a Schwarzschild-de Sitter black hole with a global monopole at finite distances. In this asymptotically nonflat spacetime, the deflectio…
gr-qc2024
Gravitational lensing effect of black holes in effective quantum gravity
Hao Liu, Meng-Yun Lai, Xiao-Yin Pan +2
In the present work, we investigate the gravitational lensing effects of two quantum-modified black hole models recently proposed in effective quantum gravity. The light deflection…