3 papers
gr-qc2026
Qualitative Shadow Anomaly as a Smoking-gun Signature of Nonmetricity
Zi-Chao Lin, Hao Yu, Yu-Xiao Liu +1
In general relativity and its metric-formalism extensions, the innermost stable circular orbit and the photon ring of a charged black hole contract as the charge increases. In this…
gr-qc2025
Holographic entropy bound and a special class of spherical systems in cosmology
Hao Yu, Zi-Chao Lin, Jin Li
The holographic entropy bound is discussed in cosmology. Inspired by the work of Fischler and Susskind [hep-th/9806039], we aim to define a special class of spherical systems in co…
gr-qc2025
The constraints on the stochastic gravitational wave background from cosmic strings by an electromagnetic resonance system
Jin Li, Meijin Li, Nan Yang +6
As one of the primary detection targets for contemporary gravitational wave (GW) observatories, the stochastic gravitational wave background (SGWB) holds significant potential for…