From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.CO2026
Probing Parity Violation with Weak Lensing Trispectrum
Sijin Chen, Zhengyangguang Gong, Jiamin Hou
The paper develops a framework to use the weak lensing convergence trispectrum as a probe of cosmological parity violation, deriving projection formulas, evaluating parity‑odd temp…
astro-ph.CO2026
C3NN-SBI: Learning Hierarchies of -Point Statistics from Cosmological Fields with Physics-Informed Neural Networks
Kai Lehman, Zhengyangguang Gong, David Gebauer +2
Cosmological analyses are moving past the well understood 2-point statistics to extract more information from cosmological fields. A natural step in extending inference pipelines t…
astro-ph.CO2025
Clustering of the extreme: A theoretical description of weak lensing critical points power spectra in the mildly nonlinear regime
Zhengyangguang Gong, Alexandre Barthelemy, Sandrine Codis
In cosmic web analysis, complementary to traditional cosmological probes, the extrema (e.g. peaks and voids) two-point correlation functions (2PCFs) are of particular interest for…