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After 45 years since the discovery of quantum-gravitational birth of the cosmological density perturbations we can try to answer the main question of cosmology what is the origin of the Universe. This has become possible because the…

广义相对论与量子宇宙学 · 物理学 2025-05-09 Vladimir N. Lukash , Elena V. Mikheeva

Cosmology is nowadays going through a true revolution in the quantity and quality of observations that are capable of providing crucial information about the origin and evolution of the universe. In the first years of the next millenium we…

天体物理学 · 物理学 2015-06-24 Juan Garcia-Bellido

We review the current standard model for the evolution of the Universe from an early inflationary epoch to the complex hierarchy of structure seen today. We summarize and provide key references for the following topics: observations of the…

天体物理学 · 物理学 2009-06-23 Bharat Ratra , Michael S. Vogeley

Our universe was born about 13.8 billion years ago from an extremely hot and dense singular point, in a process known as the Big Bang. The hot and dense matter which dominated the system within a few microseconds of its birth was in the…

高能物理 - 唯象学 · 物理学 2022-01-04 Raghunath Sahoo , Tapan Kumar Nayak

The analysis of images (of obtained in various ranges of the lengths of waves) of luminous objects in the Universe by means of a method of multilevel dynamic contrasting led author to the conclusions: a) the structures of all observable…

天体物理学 · 物理学 2015-05-13 V. A. Rantsev-Kartinov

The question of first-cause has troubled philosophers and cosmologists alike. Now that it is apparent that our universe began in a Big Bang explosion, the question of what happened before the Big Bang arises. Inflation seems like a very…

天体物理学 · 物理学 2012-08-27 J. Richard Gott , III , Li-Xin Li

In this review, the formation, evolution, and decay of the large-scale structure of the Universe is discussed in the context of observational data, numerical simulations, and the Cosmological Standard Model (CSM). Problems concerning…

宇宙学与河外天体物理 · 物理学 2012-09-04 V. N. Lukash , E. V. Mikheeva , A. M. Malinovsky

The Hubble expansion of galaxies, the $2.73\dK$ blackbody radiation background and the cosmic abundances of the light elements argue for a hot, dense origin of the universe --- the standard Big Bang cosmology --- and enable its evolution to…

高能物理 - 唯象学 · 物理学 2011-02-16 Subir Sarkar

A Big Bang universe consisting, before recombination, of H, D, 3He, 4He, 6Li, and 7Li ions, electrons, photons, and massless neutrinos, at closure density, with a galaxy-size perturbation spectrum but no large-scale structure, will evolve…

天体物理学 · 物理学 2007-05-23 Robert L. Kurucz

The history of life on Earth and in other potential life-bearing planetary platforms is deeply linked to the history of the universe. Since life as we know it relies on chemical elements forged in dying heavy stars, the universe needs to be…

科普物理 · 物理学 2015-06-04 Marcelo Gleiser

We "explain", using a Classical approach, how the Universe was created out of "nothing", i.e., with no input of initial energy. This is a Universe with no-initial infinite singularity of energy density.

综合物理 · 物理学 2012-11-07 Marcelo Samuel Berman

One of the greatest achievements of twentieth century physics is the discovery of a very close link between the microcosm and the macrocosm. This follows from the two basic principles of quantum mechanics and relativity, the uncertainty…

科普物理 · 物理学 2007-05-23 D. P. Roy

This dissertation aims to deepen the understanding of the primordial composition of the Universe in the temperature range 300 MeV>T>0.02 MeV. I exploit known properties of elementary particles and apply methods of kinetic theory and…

高能物理 - 唯象学 · 物理学 2024-01-19 Cheng Tao Yang

The mechanism of production of a large number of universes is considered. It is shown that universes with parameters suitable for creation of life are necessarily produced as a result of quantum fluctuations. Fractal structures are formed…

天体物理学 · 物理学 2008-11-26 S. G. Rubin

The transformation of organic molecules into the simplest self-replicating living system,a microorganism, is accomplished from a unique event or rare events that occurred early in the Universe. The subsequent dispersal on cosmic scales and…

宇宙学与河外天体物理 · 物理学 2010-03-02 Carl H. Gibson , N. Chandra Wickramasinghe

It seems natural to ask why the universe exists at all. Modern physics suggests that the universe can exist all by itself as a self-contained system, without anything external to create or sustain it. But there might not be an absolute…

物理学史与哲学 · 物理学 2018-06-06 Sean M. Carroll

Galaxies represent the visible fabric of the Universe and there has been considerable progress recently in both observational and theoretical studies. The underlying goal is to understand the present-day diversity of galaxy forms, masses…

天体物理学 · 物理学 2007-05-23 Richard S Ellis

We define a universe as the contents of a spacetime box with comoving walls, large enough to contain essentially all phenomena that can be conceivably measured. The initial time is taken as the epoch when the lowest CMB modes undergo…

天体物理学 · 物理学 2007-05-23 James D. Bjorken

The discovery of the Standard Model Higgs boson opens up a range of speculative cosmological scenarios, from the formation of structure in the early universe immediately after the big bang, to relics from the electroweak phase transition…

高能物理 - 唯象学 · 物理学 2015-07-22 Ian G. Moss

Galaxies represent the visible fabric of the Universe and there has been considerable progress recently in both observational and theoretical studies. The underlying goal is to understand the present-day diversity of galaxy forms, masses…

天体物理学 · 物理学 2007-05-23 Richard Ellis