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相关论文: Information Content of the Cosmic Web

200 篇论文

The connections among galaxies, the dark matter halos where they form and the properties of the large-scale Cosmic Web still need to be completely disentangled. We use the cosmological hydrodynamical simulation TNG100 of the IllustrisTNG…

We study the kinematics of the gaseous cosmic web at high redshift with Lyman alpha forest absorption in multiple QSO sightlines. Using a simple analytic model and a cosmological hydrodynamic simulation we constrain the underlying…

We present, for the first time, a Local Universe (LU) characterization using high precision constrained $N$-body simulations based on self-consistent phase-space reconstructions of the large-scale structure in the Two-Micron All-Sky Galaxy…

宇宙学与河外天体物理 · 物理学 2017-12-29 Sebastian E. Nuza , Francisco-Shu Kitaura , Steffen Hess , Noam I. Libeskind , Volker Mueller

A new numerical technique to identify the cosmic web is proposed. It is based on locating multi-stream flows, i.e. the places where the velocity field is multi-valued. The method is local in Eulerian space, simple and computaionally…

宇宙学与河外天体物理 · 物理学 2015-05-20 Sergei F. Shandarin

In hierarchical models of galaxy formation, stellar tidal streams are expected around most, if not all, galaxies. Although these features may provide useful diagnostics of the $\Lambda$CDM model, their observational properties remain poorly…

Fisher information, Shannon information entropy and Statistical Complexity are calculated for the interface of a normal metal and a superconductor, as a function of the temperature for several materials. The order parameter $\Psi({\bf r})$…

量子物理 · 物理学 2018-06-05 Ch. C. Moustakidis , C. P. Panos

We trace the connectivity of the cosmic web as defined by haloes in the Planck-Millennium simulation using a persistence and Betti curve analysis. We normalise clustering up to the second-order correlation function, and use our systematic…

宇宙学与河外天体物理 · 物理学 2024-01-23 Raul Bermejo , Georg Wilding , Rien van de Weygaert , Bernard J. T. Jones , Gert Vegter , Konstantinos Efstathiou

Resent works of Hawking and Susskind suggested that information is conserved in the universe. We extend this thesis and propose that dynamics of information - computations can conserve in Anti-de-Sitter cosmological model. Information…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Vadim Astakhov

We develop information-theoretic measures of spatial structure and pattern in more than one dimension. As is well known, the entropy density of a two-dimensional configuration can be efficiently and accurately estimated via a converging…

统计力学 · 物理学 2009-11-07 David P. Feldman , James P. Crutchfield

While information is ubiquitously generated, shared, and analyzed in a modern-day life, there is still some controversy around the ways to asses the amount and quality of information inside a noisy optical channel. A number of theoretical…

The information-theoretic representation of quantum systems, which complements the familiar energy description of the density-functional and wave-function-based theories, is here discussed. According to it, the internal disorder of the…

量子物理 · 物理学 2013-05-27 J. S. Dehesa , D. Manzano , P. S. Sánchez-Moreno , R. J. Yáñez

Distributed systems, such as biological and artificial neural networks, process information via complex interactions engaging multiple subsystems, resulting in high-order patterns with distinct properties across scales. Investigating how…

We present the 3-{\it dimensional} intrinsic alignment power spectra between the projected 2d galaxy shape/spin and the 3d tidal field across $0.1<k/h{\rm Mpc}^{-1}<60$ using cosmological hydrodynamical simulation, Illustris-TNG300, at…

星系天体物理 · 物理学 2021-03-17 Jingjing Shi , Toshiki Kurita , Masahiro Takada , Ken Osato , Yosuke Kobayashi , Takahiro Nishimichi

We report the {\em first} systematic study of the supercluster-void network in the $\Lambda$CDM concordance cosmology treating voids and superclusters on an equal footing. We study the dark matter density field in real space smoothed with…

天体物理学 · 物理学 2009-11-10 Sergei F. Shandarin

We study the two dimensional system influenced by a non-central potential consisting of a Kratzer potential with a dipole moment, along with a vector potential of the Aharonov-Bohm (AB) effect. We explore various information theoretic…

量子物理 · 物理学 2024-12-25 Ahmed Becir , Mustafa Moumni

We present a diffeomorphism-invariant formulation of differential entropy for Riemannian spaces, providing a fine-grained, coordinate-independent notion of quantum information for continuous variables in physical space. To this end, we…

量子物理 · 物理学 2025-05-16 Pablo G. Camara

The gravitational coupling between large-scale perturbations and small-scale perturbations leads to anisotropic distortions of the small-scale matter distribution. The measured local small-scale power spectrum can thus be used to infer the…

宇宙学与河外天体物理 · 物理学 2022-04-20 Hong-Ming Zhu , Tian-Xiang Mao , Ue-Li Pen

We give a pedagogical review of how concepts from quantum information theory build up the gravitational side of the AdS/CFT correspondence. The review is self-contained in that it only presupposes knowledge of quantum mechanics and general…

高能物理 - 理论 · 物理学 2022-07-20 Bowen Chen , Bartlomiej Czech , Zi-zhi Wang

In this paper, we investigate the asymptotic stability of finite-dimensional stochastic integrable Hamiltonian systems via information entropy. Specifically, we establish the asymptotic vanishing of Shannon entropy difference (with…

动力系统 · 数学 2025-10-28 Chen Wang , Yong Li

We survey and introduce concepts and tools located at the intersection of information theory and network biology. We show that Shannon's information entropy, compressibility and algorithmic complexity quantify different local and global…

分子网络 · 定量生物学 2015-12-14 Hector Zenil , Narsis A. Kiani , Jesper Tegnér