منابع مشابه
simulation and experimental studies for prediction mineral scale formation in oil field during mixing of injection and formation water
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
Large Field Inflation in Supergravity
We present a supergravity inflationary scenario in which the inflaton field takes values considerably larger than the Planck scale. It is based on a class of inflationary potentials which can be derived from “singular” Kähler potentials assuming simple superpotentials of the type W ∼ S. To this class belong, among many others, all potentials which are even infinitesimally smaller than the one d...
متن کاملTesting two-field inflation
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. We derive accurate semianalytic formulas for the power spectra from two-field inflation assuming an arbitrary poten...
متن کاملDouble-field inflation.
We present an inflationary universe model which utilizes two coupled real scalar fields. The inflation field φ experiences a first order phase transition and its potential dominates the energy density of the Universe during the inflationary epoch. This field φ is initially trapped in its metastable minimum and must tunnel through a potential barrier to reach the true vacuum. The second auxiliar...
متن کاملMultiple field inflation
Inflation offers a simple model for very early evolution of our Universe and the origin of primordial perturbations on large scales. Over the last 25 years we have become familiar with the predictions of single-field models, but inflation with more than one light scalar field can alter preconceptions about the inflationary dynamics and our predictions for the primordial perturbations. I will di...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2012
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2012/06/033