3 papers
gr-qc2026
Optical echoes of light near a black hole
Suting Ju, Jingxuan Zhang, Li-Gang Wang
The light deflection under a strong gravitational field, referred to as strong gravitational lensing, provides a powerful probe of spacetime geometry. Besides, laboratory analogue…
physics.optics2025
Black hole optical analogue: photon sphere microlasers
Chenni Xu, Aswathy Sundaresan, Nazire-Begüm Kazkal +7
The bell-like ringdown of the gravitational field in the last stage of the merging of massive black holes is now routinely detected on earth by the last generation of gravitational…
gr-qc2024
Seeing dark matter via acceleration radiation
Syed Masood A. S. Bukhari, Li-Gang Wang
Despite constituting a noteworthy share of the total energy budget of our Universe, dark matter (DM) has thus far eluded direct observations. Owing to its pervasive nat…