3 papers
hep-th2026
On Perturbatively Dressed Observables
Clifford Cheung, Allic Sivaramakrishnan, Jordan Wilson-Gerow +1
A central lesson of gravity is that local observables are ill-defined. Coordinates themselves are a redundancy of description, so any particular point in spacetime is only meaningf…
gr-qc2025
Ultralight Boson Ionization from Comparable-Mass Binaries
Yuhao Guo, Zhen Zhong, Yifan Chen +3
Detection of gravitational waves enables probes of environmental effects around compact binaries. Ultralight bosons, well motivated in particle physics and capable of forming core-…
gr-qc2025
Forward Ray Tracing and Hot Spots in Kerr Spacetime
Lihang Zhou, Zhen Zhong, Yifan Chen +1
Hotspots, often characterized as pointlike emissions, frequently appear near black holes with significantly enhanced luminosity compared to the surrounding accretion flow. Notably,…