418 citations · 2.9k across the 58 of their papers we have counts for
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Exact non-linear equations for cosmological perturbations
Jinn-Ouk Gong, Jai-chan Hwang, Hyerim Noh +2
We present a complete set of exact and fully non-linear equations describing all three types of cosmological perturbations -- scalar, vector and tensor perturbations. We derive the…
Gauge-Transformation Properties of Cosmological Observables and its Application to the Light-Cone Average
Jaiyul Yoo, Ruth Durrer
Theoretical descriptions of observable quantities in cosmological perturbation theory should be independent of coordinate systems. This statement is often referred to as gauge-inva…
Correlation function of the luminosity distances
Sang Gyu Biern, Jaiyul Yoo
We present the correlation function of the luminosity distances in a flat CDM universe. Decomposing the luminosity distance fluctuation into the velocity, the gravitational pote…
Light-Cone Observables and Gauge-Invariance in the Geodesic Light-Cone Formalism
Fulvio Scaccabarozzi, Jaiyul Yoo
The remarkable properties of the geodesic light-cone (GLC) coordinates allow analytic expressions for the light-cone observables, providing a new non-perturbative way for calculati…