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astro-ph.CO2022★ 5 cited
Large gauge transformations, local coordinates and cosmological observables
Ermis Mitsou, Jaiyul Yoo
In recent years new types of coordinate transformations have appeared in cosmology on top of the standard gauge transformations, such as the dilatations and special conformal trans…
astro-ph.CO2022
Non-Gaussianity in the Squeezed Three-Point Correlation from the Relativistic Effects
Jaiyul Yoo, Nastassia Grimm, Ermis Mitsou
Assuming a LCDM universe in a single-field inflationary scenario, we compute the three-point correlation function of the observed matter density fluctuation in the squeezed triangu…