scholarly journals Gravitational waves induced by the local-type non-Gaussian curvature perturbations

2021 ◽  
pp. 136606
Author(s):  
Chen Yuan ◽  
Qing-Guo Huang
Keyword(s):  
Gravitational Waves ◽  
Gaussian Curvature ◽  
Local Type ◽  
Non Gaussian

scholarly journals The holographic spacetime model of cosmology

2018 ◽  
Vol 27 (14) ◽  
pp. 1846005 ◽  
Author(s):  
Tom Banks ◽  
W. Fischler
Keyword(s):  
Dark Matter ◽  
Gravitational Waves ◽  
Structure Formation ◽  
Big Bang ◽  
Baryon Asymmetry ◽  
Gaussian Fluctuations ◽  
Primordial Gravitational Waves ◽  
Conventional Models ◽  
Non Gaussian ◽  
The Big Bang

This essay outlines the Holographic Spacetime (HST) theory of cosmology and its relation to conventional theories of inflation. The predictions of the theory are compatible with observations, and one must hope for data on primordial gravitational waves or non-Gaussian fluctuations to distinguish it from conventional models. The model predicts an early era of structure formation, prior to the Big Bang. Understanding the fate of those structures requires complicated simulations that have not yet been done. The result of those calculations might falsify the model, or might provide a very economical framework for explaining dark matter and the generation of the baryon asymmetry.

scholarly journals Clustering of primordial black holes with non-Gaussian initial fluctuations

2019 ◽  
Vol 2019 (10) ◽  
Author(s):  
Teruaki Suyama ◽  
Shuichiro Yokoyama
Keyword(s):  
Black Holes ◽  
Correlation Function ◽  
Functional Integration ◽  
Formation Time ◽  
Primordial Black Holes ◽  
Local Type ◽  
Integration Approach ◽  
Point Correlation ◽  
Point Correlation Function ◽  
Non Gaussian

Abstract We formulate the two-point correlation function of primordial black holes (PBHs) at their formation time, based on the functional integration approach which has often been used in the context of halo clustering. We find that PBH clustering on super-Hubble scales could never be induced in the case where the initial primordial fluctuations are Gaussian, while it can be enhanced by the so-called local-type trispectrum (four-point correlation function) of the primordial curvature perturbations.

scholarly journals Robust statistics for deterministic and stochastic gravitational waves in non-Gaussian noise: Frequentist analyses

2002 ◽  
Vol 65 (12) ◽  
Author(s):  
Bruce Allen ◽  
Jolien D. E. Creighton ◽  
Éanna É. Flanagan ◽  
Joseph D. Romano
Keyword(s):  
Gravitational Waves ◽  
Gaussian Noise ◽  
Robust Statistics ◽  
Non Gaussian

scholarly journals Non-Gaussian curvature distribution of actin-propelled biomimetic colloid trajectories

2008 ◽  
Vol 37 (8) ◽  
pp. 1361-1366 ◽  
Author(s):  
Stephan Schmidt ◽  
Jasper van der Gucht ◽  
P. Maarten Biesheuvel ◽  
Richard Weinkamer ◽  
Emmanuèle Helfer ◽  
...  
Keyword(s):  
Gaussian Curvature ◽  
Non Gaussian ◽  
Curvature Distribution
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