Results 11 to 20 of about 442,631 (299)
Polymerization Induces Non-Gaussian Diffusion [PDF]
Frontiers in Physics, 2019 Recent theoretical modeling offers a unified picture for the description of stochastic processes characterized by a crossover from anomalous to normal behavior.
Fulvio Baldovin +2 more
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Primordial non-Gaussianity and non-Gaussian covariance
Physical Review D, 2023 In the pursuit of primordial non-Gaussianities, we hope to access smaller scales across larger comoving volumes. At low redshift, the search for primordial non-Gaussianities is hindered by gravitational collapse, to which we often associate a scale $k_{\rm NL}$.
Thomas Flöss +2 more
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Quantum Non-Gaussian Photon Coincidences [PDF]
Physical Review Letters, 2021 Photon coincidences represent an important resource for quantum technologies. They expose nonlinear quantum processes in matter and are essential for sources of entanglement. We derive broadly applicable criteria for quantum non-Gaussian two-photon coincidences that certify a new quality of photon sources.
Lukáš Lachman, Radim Filip
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Inhomogeneous non-gaussianity [PDF]
Journal of Cosmology and Astroparticle Physics, 2012 We propose a method to probe higher-order correlators of the primordial density field through the inhomogeneity of local non-Gaussian parameters, such as f_NL, measured within smaller patches of the sky. Correlators between n-point functions measured in one patch of the sky and k-point functions measured in another patch depend upon the (n+k)-point ...
Byrnes, Christian T. +3 more
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Resonant non-gaussianity [PDF]
Journal of Cosmology and Astroparticle Physics, 2011 32 pages, 4 ...
Flauger, Raphael, Pajer, Enrico
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Journal of Cosmology and Astroparticle Physics, 2009 We study non-Gaussianity induced by a pseudo Nambu-Goldstone boson with a cosine-type scalar potential. We focus on how the non-Gaussianity is affected when the pseudo Nambu-Goldstone boson rolls down from near the top of the scalar potential where the deviation from a quadratic potential is large.
Kawasaki, Masahiro +2 more
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Non-Gaussianity from preheating [PDF]
Physical Review Letters, 2005 4 pages ReVTeX4, discussion and references added, conclusions ...
Enqvist, Kari +4 more
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Non-Gaussianity After BICEP2 [PDF]
Physical Review Letters, 2014 5 pages, 2 figures. References and minor clarifications added. Version published in Phys.
D'Amico, Guido, Kleban, Matthew
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Non-Gaussianity from symmetry [PDF]
Journal of Cosmology and Astroparticle Physics, 2008 26 pages, 1 figure;v2 discussion and references added.
Suyama, Teruaki, Takahashi, Fuminobu
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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
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