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The current standard cosmological model is constructed within the framework of general relativity with a cosmological constant $\Lambda$, which is often associated with dark energy, and phenomenologically explains the accelerated cosmic…

广义相对论与量子宇宙学 · 物理学 2023-06-27 Jiamin Hou , Julian Bautista , Maria Berti , Carolina Cuesta-Lazaro , César Hernández-Aguayo , Tilman Tröster , Jinglan Zheng

The Pre-Big Bang cosmology inspired generations of cosmologists in attempts to cure the initial Big Bang singularity using a fundamental length scale as proposed by String Theory. The existence of a phase of collapse/inflation with…

广义相对论与量子宇宙学 · 物理学 2022-07-14 V. Bozza

In this series of lectures we review observational evidence for, and theoretical investigations into, cosmic acceleration and dark energy. The notes are in four sections. First I review the basic cosmological formalism to describe the…

宇宙学与河外天体物理 · 物理学 2015-03-13 Rachel Bean

Classical cosmology exhibits a particular kind of scaling symmetry. The dynamics of the invariants of this symmetry forms a system that exhibits many of the features of open systems such as the non-conservation of mechanical energy and the…

广义相对论与量子宇宙学 · 物理学 2024-03-13 Sean Gryb , David Sloan

We study the implications of a combined analysis of cosmic standard candles and standard rulers on the viability of cosmological models beyond the cosmological concordance model. To this end, we employ well-established data in the form of…

宇宙学与河外天体物理 · 物理学 2020-10-19 Manfred Lindner , Kevin Max , Moritz Platscher , Jonas Rezacek

Cosmology and high energy physics are two closely connected areas. In this lecture I present an example of their rich interplay.

高能物理 - 唯象学 · 物理学 2009-11-11 Mairi Sakellariadou

Using dynamical system analysis, we explore the cosmology of theories of order up to eight order of the form $f(R, \Box R)$. The phase space of these cosmology reveals that higher-order terms can have a dramatic influence on the evolution…

广义相对论与量子宇宙学 · 物理学 2019-05-08 Sante Carloni , João Luís Rosa , José P. S. Lemos

In this work we study the cosmological simulations as a tool to understand the formation of large-scale structure of the universe, for this, we show the equivalence of Newtonian cosmology with Poisson gauge and we study the solution of the…

星系天体物理 · 物理学 2014-09-05 J. E. García Farieta , L. Castañeda , J. M. Tejeiro

The vacuum component of the Universe is investigated in both quantum and classical regimes of its evolution. More than 78 orders of magnitude of the vacuum energy have been reduced in the quantum regime during 10^-6 sec. Near 45 orders have…

综合物理 · 物理学 2012-05-14 Vladimir Burdyuzha

I briefly discuss the challenges presented by attempting to modify general relativity to obtain an explanation for the observed accelerated expansion of the universe. Foremost among these are the questions of theoretical consistency - the…

宇宙学与河外天体物理 · 物理学 2015-05-20 Mark Trodden

We argue that most advances in science and technology during the past and the present centuries rely on modern physics concepts developed in the early $20$th century. The reliance is so profound that any improvement of literacy of science…

物理教育 · 物理学 2022-08-17 Yousef Bisabr

In this essay a critical review of present conceptual problems in current cosmology is provided from a more philosophical point of view. In essence, a digression on how could philosophy help cosmologists in what is strictly their…

物理学史与哲学 · 物理学 2011-11-14 F. J. Amaral Vieira

Observational cosmology has indeed made very rapid progress in recent years. The ability to quantify the universe has largely improved due to observational constraints coming from structure formation. The transition to precision cosmology…

天体物理学 · 物理学 2008-11-26 Jeremiah P. Ostriker , Tarun Souradeep

The purpose of this work is to review, clarify, and critically analyse modern mathematical cosmology. The emphasis is upon mathematical objects and structures, rather than numerical computations. This paper concentrates on general…

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

The traditional university science curriculum was designed to train specialists in specific disciplines. However, in universities all over the world, science students are going into increasingly diverse careers and the current model does…

物理教育 · 物理学 2018-07-09 Sun Kwok

The current status of neutrino cosmology is reviewed, from the question of neutrino decoupling and the presence of sterile neutrinos to the effects of neutrinos on the cosmic microwave background and large scale structure. Particular…

高能物理 - 唯象学 · 物理学 2009-11-10 Steen Hannestad

We review a few off-the-beaten-track ideas in cosmology. They solve a variety of fundamental problems; also they are fun. We start with a description of non-singular dilaton cosmology. In these scenarios gravity is modified so that the…

高能物理 - 唯象学 · 物理学 2007-05-23 Robert H. Brandenberger , Joao Magueijo

Introducing gravitational physics at high school provides educational means for bridging the gap between the image of science held by students and science itself. Natural language is fundamental in this learning. It engages students in…

物理教育 · 物理学 2025-03-26 Matteo Tuveri , Viviana Fanti

The aim of these lecture notes is to familiarize graduate students and beginning postgraduates with the basic ideas of linear cosmological perturbation theory and of structure formation scenarios. We present both the Newtonian and the…

天体物理学 · 物理学 2010-12-09 Christos G. Tsagas

COSMOPARTICLE PHYSICS is the specific crossdisciplinary field of science, studying foundations of particle physics and cosmology in the combination of indirect cosmological, astrophysical and physical signatures of their fundamental…

高能物理 - 唯象学 · 物理学 2008-11-26 M. Yu. Khlopov , A. S. Sakharov , A. L. Sudarikov
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