File Name: cosmological inflation and large scale structure .zip
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- Observational Tests of Cosmological Inflation
- Inflation (cosmology)
Physics is a graduate-level introduction to cosmology, the study of the structure and evolution of the universe. As a post-candidacy level course, it is appropriate for students in all specialties, with only standard first-year courses as prerequisites.
In physical cosmology , cosmic inflation , cosmological inflation , or just inflation , is a theory of exponential expansion of space in the early universe. Following the inflationary period, the universe continued to expand, but at a slower rate. Inflation theory was developed in the late s and early 80s, with notable contributions by several theoretical physicists , including Alexei Starobinsky at Landau Institute for Theoretical Physics , Alan Guth at Cornell University , and Andrei Linde at Lebedev Physical Institute.
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Melia 1 and M. Received: 26 October Accepted: 21 December The lack of large-angle correlations in the fluctuations of the cosmic microwave background CMB conflicts with predictions of slow-roll inflation. Here we aim to show that the absence of large-angle correlations is best explained with the introduction of a non-zero minimum wave number k min for the fluctuation power spectrum P k. We then re-calculated the angular correlation function of the CMB and compared it with Planck observations. This argues against the basic inflationary paradigm, and perhaps even suggests non-inflationary alternatives, for the origin and growth of perturbations in the early Universe.
Observational Tests of Cosmological Inflation
Cosmological inflation provides the simplest and most promising mechanism for generating fluctuations for structure formation. I compare these results with the latest cosmological observations. Unable to display preview. Download preview PDF. Skip to main content.
The latest results of space and ground-based mission WMAP, Planck, BICEP2 discussed widely by the scientific community and indicate the need for research on new models of inflation, other than the basic model of inflation, based on a single self-interacting scalar field. In this paper we consider the inflationary model based on chiral cosmological model, which takes into account the various forms of kinetic interaction between the phantom and the canonical field. This study determines the dynamics and interaction of the fields in the short time at the stage of early inflation, when the potential fields of cooperation remains constant as seen in the model of the "new" inflation. We present a general algorithm for solving dynamic equations on chiral scalar fields and examine special cases when it is possible to find a solution in elementary functions. Ade P. Planck Collaboration. Planck results.
The origin and evolution of the primordial perturbation is the key to understanding structure formation in the earliest stages of the Universe. It carries clues to the types of physical phenomena active in that extreme high-density environment. In recent years cosmologists have advanced from largely qualitative models of the Universe to precision modelling using Bayesian methods, in order to determine the properties of the Universe to high accuracy. This timely book is the only comprehen
Меня ждет самолет. - Он еще раз оглядел комнату. - Вас подбросить в аэропорт? - предложил лейтенант - Мой Мото Гуччи стоит у подъезда. - Спасибо, не стоит. Я возьму такси.
Старая электрическая сушилка для рук захватана грязными пальцами. Беккер остановился перед зеркалом и тяжело вздохнул. Обычно лучистые и ясные, сейчас его глаза казались усталыми, тусклыми.