An Exact Solution with Exit in the New Inflationary Universe Model

作     者：WANG Wen-Fu 王文福

作者机构：Department of Industrial AutomationSouthwest Petroleum InstituteNanchong 637001 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2001年第18卷第7期

页      面：997-999页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：scalar smoothly exponential 

摘      要：Taking the cosmological expansion rate directly as a function of the inflaton field jinstead of as a function of time,we present a new exact solution to Einstein s equations that describe the evolution of inflationary universe *** includes a solution which has nearly exponential inflation for,and then develops smoothly towards radiation-like evolution *** inflation is driven by the evolution of scalar field with inflation potential,V()=V0-m^(2)/^(2)+λ/*** spectral index of the scalar density,ns,is computed and ns lies well inside the limits set by the cosmic background explorer satellite.