广义测不准原理对精粹动力学的畸变

IF 3 3区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Gaurav Bhandari , S.D. Pathak , Manabendra Sharma , Anzhong Wang
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引用次数: 0

摘要

本文将广义测不准原理(GUP)引入到具有势的纯标量场影响下的对称约简宇宙哈密顿量中。我们的研究集中在半经典制度上。具体地说,我们推导了弗里德曼方程、雷乔杜里方程和克莱因-戈登方程的修正版本。随后,我们对电位V(ϕ)=V0sinh−n(μϕ)的定性动力学进行了系统的分析。这包括使用合适的动力变量制定一个自主动力系统,然后通过线性稳定性理论进行定性分析。我们的研究结果表明,与不考虑量子效应的情况相比,加入GUP显著地改变了固定点。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distortion of quintessence dynamics by the generalized uncertainty principle
In this paper, we introduce the generalized uncertainty principle (GUP) into the symmetry-reduced cosmological Hamiltonian for a universe influenced by a quintessence scalar field with potential. Our investigation centers on the semi-classical regime. Specifically, we derive the GUP-modified versions of the Friedmann, Raychaudhuri, and Klein–Gordon equations. Subsequently, we conduct a systematic analysis of the qualitative dynamics for the potential V(ϕ)=V0sinhn(μϕ). This involves formulating an autonomous dynamical system using suitable dynamical variables, followed by a qualitative analysis through linear stability theory. Our findings reveal that incorporating GUP markedly alters the fixed points compared to the scenario without quantum effects, where GUP is not considered.
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来源期刊
Annals of Physics
Annals of Physics 物理-物理:综合
CiteScore
5.30
自引率
3.30%
发文量
211
审稿时长
47 days
期刊介绍: Annals of Physics presents original work in all areas of basic theoretic physics research. Ideas are developed and fully explored, and thorough treatment is given to first principles and ultimate applications. Annals of Physics emphasizes clarity and intelligibility in the articles it publishes, thus making them as accessible as possible. Readers familiar with recent developments in the field are provided with sufficient detail and background to follow the arguments and understand their significance. The Editors of the journal cover all fields of theoretical physics. Articles published in the journal are typically longer than 20 pages.
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