2k citations · 34.3k across the 249 of their papers we have counts for
13 papers · 1 filter
Biased Tracers and Time Evolution
Mehrdad Mirbabayi, Fabian Schmidt, Matias Zaldarriaga
We study the effect of time evolution on galaxy bias. We argue that at any order in perturbations, the galaxy density contrast can be expressed in terms of a finite set of locally…
Testing Inflation with Large Scale Structure: Connecting Hopes with Reality
Marcelo Alvarez, Tobias Baldauf, J. Richard Bond +25
The statistics of primordial curvature fluctuations are our window into the period of inflation, where these fluctuations were generated. To date, the cosmic microwave background h…
Baryon Acoustic Peak and the Squeezed Limit Bispectrum
Mehrdad Mirbabayi, Marko Simonović, Matias Zaldarriaga
In the non-relativistic regime, pertinent to the large scale structure of the Universe, the leading effect of a long-wavelength perturbation on short distance physics is a…
Implications of the scalar tilt for the tensor-to-scalar ratio
Paolo Creminelli, Sergei Dubovsky, Diana López Nacir +4
We investigate the possible implications of the measured value of the scalar tilt for the tensor-to-scalar ratio in slow-roll, single-field inflationary models. The measu…
Gravitational Waves and the Scale of Inflation
Mehrdad Mirbabayi, Leonardo Senatore, Eva Silverstein +1
We revisit alternative mechanisms of gravitational wave production during inflation and argue that they generically emit a non-negligible amount of scalar fluctuations. We find the…
Redshift Space Distortions in the Effective Field Theory of Large Scale Structures
Leonardo Senatore, Matias Zaldarriaga
We introduce a formalism, valid both for dark matter and collapsed objects, that allows us to describe redshift space distortions in the context of the Effective Field Theory of La…
Double Soft Limits of Cosmological Correlations
Mehrdad Mirbabayi, Matias Zaldarriaga
Correlation functions of two long-wavelength modes with several short-wavelength modes are shown to be related to lower order correlation functions, using the background wave metho…
CMB Anisotropies from a Gradient Mode
Mehrdad Mirbabayi, Matias Zaldarriaga
A linear gradient mode must have no observable dynamical effect on short distance physics. We confirm this by showing that if there was such a gradient mode extending across the wh…
Beyond the Linear-Order Relativistic Effect in Galaxy Clustering: Second-Order Gauge-Invariant Formalism
Jaiyul Yoo, Matias Zaldarriaga
We present the second-order general relativistic description of the observed galaxy number density in a cosmological framework. The observed galaxy number density is affected by th…
Inflation at its Endpoint
Paolo Creminelli, Diana López Nacir, Marko Simonović +2
In the simplest inflationary model , we provide a prediction accurate up to for the spectral index and the tensor-to-scalar ratio assuming instant…
The IR-resummed Effective Field Theory of Large Scale Structures
Leonardo Senatore, Matias Zaldarriaga
We present a new method to resum the effect of large scale motions in the Effective Field Theory of Large Scale Structures. Because the linear power spectrum in CDM is not scale…
or Not : Testing the Simplest Inflationary Potential
Paolo Creminelli, Diana López Nacir, Marko Simonović +2
The simplest inflationary model represents the benchmark for future constraints. For a quadratic potential, the quantity vanishes (…
Renormalized Halo Bias
Valentin Assassi, Daniel Baumann, Daniel Green +1
This paper provides a systematic study of renormalization in models of halo biasing. Building on work of McDonald, we show that Eulerian biasing is only consistent with renormaliza…