Results 41 to 50 of about 22,410,258 (325)
, 2022 The non-Gaussianity parameter G(Δ) shown for lag-times of up to one hour. At short times the departure from Gaussian behavior is significant, while longer times show a relaxation to the expected result for Gaussian processes G = 0.
Benjamin Partridge (13783100) +6 more
core +1 more source
Non-gaussian shape recognition [PDF]
Journal of Cosmology and Astroparticle Physics, 2013 37 pages, 7 figures, 5 tables.
Byun, Joyce, Bean, Rachel
openaire +2 more sources
Revisiting non-Gaussianity from non-attractor inflation models [PDF]
, 2017 Non-attractor inflation is known as the only single field inflationary scenario that can violate non-Gaussianity consistency relation with the Bunch-Davies vacuum state and generate large local non-Gaussianity.
Yi-Fu Cai +5 more
semanticscholar +1 more source
Anisotropies and non-Gaussianity of the cosmological gravitational wave background [PDF]
Physical Review D, 2019 The Stochastic Gravitational Wave Background (SGWB) is expected to be a key observable for Gravitational Wave (GW) interferometry. Its detection will open a new window on early universe cosmology and on the astrophysics of compact objects.
N. Bartolo +6 more
semanticscholar +1 more source
Journal of Cosmology and Astroparticle Physics, 2011 42 pages, 2 figs, published ...
McFadden, P., Skenderis, K.
openaire +4 more sources
Enhanced continuous generation of non-Gaussianity through optomechanical modulation
New Journal of Physics, 2019 We study the non-Gaussian character of quantum optomechanical systems evolving under the fully nonlinear optomechanical Hamiltonian. By using a measure of non-Gaussianity based on the relative entropy of an initially Gaussian state, we quantify the ...
Sofia Qvarfort +4 more
doaj +1 more source
Constraining running non-gaussianity [PDF]
Journal of Cosmology and Astroparticle Physics, 2009 The primordial non-Gaussian parameter fNL has been shown to be scale-dependent in several models of inflation with a variable speed of sound. Starting from a simple ansatz for a scale-dependent amplitude of the primordial curvature bispectrum for two common phenomenological models of primordial non-Gaussianity, we perform a Fisher matrix analysis of ...
Emiliano Sefusatti +4 more
openaire +2 more sources
Non-Gaussian Process Regression
CoRR, 2022 Standard GPs offer a flexible modelling tool for well-behaved processes. However, deviations from Gaussianity are expected to appear in real world datasets, with structural outliers and shocks routinely observed. In these cases GPs can fail to model uncertainty adequately and may over-smooth inferences.
Yaman Kindap, Simon J. Godsill
openaire +3 more sources
Coupled Criticality Analysis of Inflation and Unemployment
Entropy, 2020 In this paper, we focus on the critical periods in the economy that are characterized by unusual and large fluctuations in macroeconomic indicators, like those measuring inflation and unemployment. We analyze U.S.
Zahra Koohi Lai +4 more
doaj +1 more source
Squeezed tensor non-Gaussianity in non-attractor inflation [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We investigate primordial tensor non-Gaussianity in single field inflation, during a phase of non-attractor evolution when the spectrum of primordial tensor modes can be enhanced to a level detectable at interferometer scales.
Ogan Özsoy +5 more
semanticscholar +1 more source