101 citations · 586 across the 25 of their papers we have counts for
6 papers · 1 filter
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…
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…
Hybrid Quasi-Single Field Inflation
Yi Wang, Yi-Peng Wu, Jun'ichi Yokoyama +1
The decay of massive particles during inflation generates characteristic signals in the squeezed limit of the primordial bispectrum. These signals are in particular distinctive in…
Connections between Minkowski and Cosmological Correlation Functions
Shek Kit Chu, Mang Hei Gordon Lee, Shiyun Lu +3
We show how cosmological correlation functions of massless fields can be rewritten in terms of Minkowski correlation functions, by extracting symmetry-breaking operators from the c…
Warm Quasi-Single Field Inflation
Xi Tong, Yi Wang, Siyi Zhou
We study quasi-single field inflation with a warm inflation background. The thermal effects at small scales can sufficiently enhance the magnitude of the primordial standard clock…