3 papers
hep-ph2026
Scalar-Induced Electromagnetic Radiation: Comparison with Axion-Like Particles and Implications for Modified Gravity
Wenyi Wang, Sousuke Noda, Taishi Katsuragawa
The scalar-tensor theory of gravity, a modified gravity theory, introduces a fundamental scalar field that can serve as dynamical dark energy, driving the late-time accelerated exp…
gr-qc2026
Stimulated radiation from superradiant scalar cloud in scalar-tensor theory
Wenyi Wang, Sousuke Noda, Taishi Katsuragawa
Scalar-tensor theories predict fundamental scalar fields of considerable interest in astrophysics and cosmology. We investigate the superradiant instability of scalar clouds around…
gr-qc2024
Solar system tests in covariant f(Q) gravity
Wenyi Wang, Kun Hu, Taishi Katsuragawa
We study the Solar System constraints on covariant gravity. The covariant theory is described by the metric and affine connection, where both the torsion and curvatur…