1 citations · 1 across the 5 of their papers we have counts for
5 papers
On the Numerical Integration of One-Loop Cosmological Collider Signals
Michael Borinsky, Aidan Herderschee, Qianshu Lu
In a broad class of inflationary models, the leading non-Gaussian bispectrum arises from one-loop rather than tree-level processes. However, realistic one-loop contributions remain…
Scalars at the Cosmological Collider: Full Shapes of Tree Diagrams and Bispectrum Searches using Planck Data
Soubhik Kumar, Qianshu Lu, Zhong-Zhi Xianyu +1
The Cosmological Collider (CC) provides a unique opportunity to probe the particle spectrum and fundamental interactions at extremely high energies. Massive particles, via their de…
Cosmological Collider Searches beyond the Hubble Scale with Planck Data
Soubhik Kumar, Qianshu Lu, Zhong-Zhi Xianyu +1
Searches for primordial non-Gaussianity (NG) has the potential to not only reveal the physics of cosmic inflation, but also the structure of fundamental interactions at the highest…
TCC in the interior of moduli space and its implications for the string landscape and cosmology
Alek Bedroya, Qianshu Lu, Paul Steinhardt
We consider the classical Friedmann-Robertson-Walker solutions that describe a universe undergoing a transition from an accelerating expansion phase in the past to an eternal decel…
Phenomenology of Spillway Preheating: Equation of State and Gravitational Waves
Gareth Mansfield, JiJi Fan, Qianshu Lu
In the canonical tachyonic resonance preheating scenario, only an order one fraction of energy density in the inflaton is transferred to radiation, due to backreaction effects. One…