Results 31 to 40 of about 22,410,258 (325)
Redshift-weighted constraints on primordial non-Gaussianity from the clustering of the eBOSS DR14 quasars in Fourier space [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We present constraints on local primordial non-Gaussianity (PNG), parametrized through fNLloc, using the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey Data Release 14 quasar sample.
E. Castorina +15 more
semanticscholar +1 more source
Non-Gaussianities in collider energy flux
Journal of High Energy Physics, 2022 The microscopic dynamics of particle collisions is imprinted into the statistical properties of asymptotic energy flux, much like the dynamics of inflation is imprinted into the cosmic microwave background.
Hao Chen +3 more
doaj +1 more source
Abundance of primordial black holes with local non-Gaussianity in peak theory [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We discuss the effect of local type non-Gaussianity on the abundance of primordial black holes (PBH) based on the peak theory. We provide the PBH formation criterion based on the so-called compaction function and use the peak theory statistics associated
Chul-Moon Yoo +2 more
semanticscholar +1 more source
Convex resource theory of non-Gaussianity [PDF]
Physical Review A, 2018 Continuous-variable systems realized in quantum optics play a major role in quantum information processing, and it is also one of the promising candidates for a scalable quantum computer.
Ryuji Takagi, Quntao Zhuang
semanticscholar +1 more source
Non-Gaussianity in DHOST inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 Abstract DHOST inflation models where deviations from a pure de Sitter background are induced by an axion-like potential can lead to large non-Gaussianities. We investigate the nature of non-Gaussianities in these models and compare to the results given by the Planck experiment.
Brax, Philippe, Lazanu, Andrei
openaire +4 more sources
Consistency relation and inflaton field redefinition in the δN formalism
Physics Letters B, 2017 We compute for general single-field inflation the intrinsic non-Gaussianity due to the self-interactions of the inflaton field in the squeezed limit.
Guillem Domènech +2 more
doaj +1 more source
Primordial black holes from inflation and non-Gaussianity [PDF]
, 2018 Primordial black holes may owe their origin to the small-scale enhancement of the comoving curvature perturbation generated during inflation. Their mass fraction at formation is markedly sensitive to possible non-Gaussianities in such large, but rare ...
G. Franciolini +3 more
semanticscholar +1 more source
The ineludible non-Gaussianity of the primordial black hole abundance [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We study the formation of primordial black holes when they are generated by the collapse of large overdensities in the early universe. Since the density contrast is related to the comoving curvature perturbation by a nonlinear relation, the overdensity ...
V. De Luca +5 more
semanticscholar +1 more source
Gaussian and Non-Gaussian operations on non-Gaussian state: engineering non-Gaussianity
Quantum Measurements and Quantum Metrology, 2014 AbstractMultiple photon subtraction applied to a displaced phase-averaged coherent state, which is a non-Gaussian classical state, produces conditional states with a non trivial (positive) Glauber-Sudarshan Prepresentation. We theoretically and experimentally demonstrate that, despite its simplicity, this class of conditional states cannot be fully ...
S. Olivares, A. Allevi, M. Bondani
openaire +2 more sources
Constraining primordial non-Gaussianity with bispectrum and power spectrum from upcoming optical and radio surveys [PDF]
, 2018 We forecast constraints on primordial non-Gaussianity (PNG) and bias parameters from measurements of galaxy power spectrum and bispectrum in future radio continuum and optical surveys. In the galaxy bispectrum, we consider a comprehensive list of effects,
D. Karagiannis +5 more
semanticscholar +1 more source