574 citations · 3.8k across the 87 of their papers we have counts for
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Operator Method and Recursion Relations for Inflationary Correlator
Shek Kit Chu, Yi Wang, Siyi Zhou
We develop the systematics for applying operators on Minkowski correlation functions to get the inflationary correlation functions. Simple structures and recursion relations are kn…
Do we need fine-tuning to create primordial black holes?
Tomohiro Nakama, Yi Wang
Recently, the formation of primordial black holes (PBHs) from the collapse of primordial fluctuations has received much attention. The abundance of PBHs formed during radiation dom…
Imprints of Schwinger Effect on Primordial Spectra
Wan Zhen Chua, Qianhang Ding, Yi Wang +1
We study the Schwinger effect during inflation and its imprints on the primordial power spectrum and bispectrum. The produced charged particles by Schwinger effect during inflation…
KLT-Like Behaviour of Inflationary Graviton Correlators
Shing Yan Li, Yi Wang, Siyi Zhou
We use the spinor helicity formalism to study KLT-like relations for the inflationary graviton four-point correlation function. New features are observed in this correlation functi…
Dark Energy from Ratio Gravity
Jackie C. H. Liu, Yi Wang
The theory of Ratio Gravity (RG) proposes that the curvature of 3+1 spacetime originates from a deformation of a Cross Ratio, where similar mathematical structure to general relati…
Neutrino Signatures in Primordial Non-Gaussianities
Xingang Chen, Yi Wang, Zhong-Zhi Xianyu
We study the cosmological collider phenomenology of neutrinos in an effective field theory. The mass spectrum of neutrinos and their characteristic oscillatory signatures in the sq…