COSMOLOGICAL ASPECTS OF A VECTOR FIELD MODEL

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A cosmological model with complex scalar field

In this paper, we wish to point out the possibility of using a complex scalar field to account for the inflationary stage and the current acceleration. By the analysis of the dynamical system and numerical work, we show that the amplitude of the complex scalar field plays the role of the inflaton whereas the phase is the quintessence field. The numerical solutions describe heteroclinic orbits, ...

متن کامل

Cheng-Weyl Vector Field and its Cosmological Application

Weyl’s antiquated idea of scale invariance was resurrected by Cheng in 1988, almost 60 years later. The requirement of local scale invariance leads to the existence of a completely new vector field, which we call as “Cheng-Weyl vector field”. The Cheng-Weyl vector field only couples to the scalar field and the gravitational field naturally. It does not interact with other known matters in the p...

متن کامل

investigating the feasibility of a proposed model for geometric design of deployable arch structures

deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...

Visualising Vector Field Model Simulations

Many scientific simulations and models are based upon one or more coupled field equations. Fields are often modelled as a regular mesh or grid of individual field variables where each degrees of freedom or site variable is a scalar or vector quantity. Visualising such quantities interactively can be a great aid to debugging as well as understanding and interpreting the results of numerical simu...

متن کامل

Spherical Infall Model in a Cosmological Background Density Field

We discuss the influence of the cosmological background density field on the spherical infall model. The spherical infall model has been used in the Press-Schechter formalism to evaluate the number abundance of clusters of galaxies, as well as to determine the density parameter of the universe from the infalling flow. Therefore, the understanding of collapse dynamics play a key role for extract...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: International Journal of Modern Physics D

سال: 2012

ISSN: 0218-2718,1793-6594

DOI: 10.1142/s0218271812500630