This website requires JavaScript.

Global phase space analysis for a class of single scalar field bouncing solutions in general relativity

A. S. AgrawalSaikat ChakrabortyB. MishraJibitesh DuttaWompherdeiki Khyllep
Dec 2022
摘要
We carry out a compact phase space analysis of a non-canonical scalar fieldtheory whose generic form of the Lagrangian is $F(X)-V(\phi)$ within generalrelativity. In particular, we focus on the power law and exponential potentialsof the scalar field. A global dynamical system formulation particularlysuitable for investigating nonsingular bouncing cosmologies is used to carryout the analysis. Global dynamical system techniques help us to extract genericconclusions for a wide range of initial conditions. The main aim of this workis to analyze the generic behavior of nonsingular bouncing solutions usingglobal dynamical system tools. We show that for a noncanonical scalar fieldwith exponential potential, nonsingular bouncing cosmologies are a genericfeature and stable in past and future directions. However, the same cannot beconcluded for power law potential due to the non-existence of global past orfuture attractors. Our analysis is intended to show how global phase spaceformulations can be utilized to address questions about the stability ofbouncing solutions.
展开全部
图表提取

暂无人提供速读十问回答

论文十问由沈向洋博士提出,鼓励大家带着这十个问题去阅读论文,用有用的信息构建认知模型。写出自己的十问回答,还有机会在当前页面展示哦。

Q1论文试图解决什么问题?
Q2这是否是一个新的问题?
Q3这篇文章要验证一个什么科学假设?
0
被引用
笔记
问答