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Solar Wind Turbulence and Complexity Probed with Rank-Ordered Multifractal Analysis (ROMA)

Voitcu, Gabriel; Echim, Marius; Munteanu, Costel +1 more

The Rank-Ordered Multifractal Analysis (ROMA) is a tool designed to characterize scale (in)variance and multifractality based on rank ordering the fluctuations in "groups" characterized by the same mono-fractal behavior (Hurst exponent). A range-limited structure-function analysis provides the mono-fractal index for each rank-ordered range of fluc…

Determining the Bulk Parameters of Plasma Electrons from Pitch-Angle Distribution Measurements

Verscharen, Daniel; Livadiotis, George; Owen, Christopher +3 more

Multifractal and Chaotic Properties of Solar Wind at MHD and Kinetic Domains: An Empirical Mode Decomposition Approach

Marcucci, Maria Federica; Consolini, Giuseppe; Alberti, Tommaso +3 more

Turbulence, intermittency, and self-organized structures in space plasmas can be investigated by using a multifractal formalism mostly based on the canonical structure function analysis with fixed constraints about stationarity, linearity, and scales. Here, the Empirical Mode Decomposition (EMD) method is firstly used to investigate timescale fluc…

Testing the Interacting Dark Energy Model with Cosmic Microwave Background Anisotropy and Observational Hubble Data

Yang, Weiqiang; Xu, Lixin; Wu, Yabo +2 more

The coupling between dark energy and dark matter provides a possible approach to mitigate the coincidence problem of the cosmological standard model. In this paper, we assumed the interacting term was related to the Hubble parameter, energy density of dark energy, and equation of state of dark energy. The interaction rate between dark energy and d…

A Dynamic Dark Information Energy Consistent with Planck Data

Gough, Michael Paul

The 2013 cosmology results from the European Space Agency Planck spacecraft provide new limits to the dark energy equation of state parameter. Here we show that Holographic Dark Information Energy (HDIE), a dynamic dark energy model, achieves an optimal fit to the published datasets where Planck data is combined with other astrophysical measuremen…

Spacetime Foam: From Entropy and Holography to Infinite Statistics and Nonlocality

Ng, Y. Jack

Due to quantum fluctuations, spacetime is foamy on small scales. The degree of foaminess is found to be consistent with holography, a principle prefigured in the physics of black hole entropy. It has bearing on the ultimate accuracies of clocks and measurements and the physics of quantum computation. Consistent with existing archived data on activ…