量子宇宙学中的初始状态与宇宙的适当质量

IF 2.5 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
Universe Pub Date : 2024-09-11 DOI:10.3390/universe10090366
Natalia Gorobey, Alexander Lukyanenko, Alexander V. Goltsev
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引用次数: 0

摘要

在引力理论的欧几里得形式中,没有专门的时间参数,因此提出了最小作用原理的广义规范形式。在此基础上,提出了量子最小作用原理,其中宇宙在起源中的 "动力学 "是由作用算子的特征向量描述的--作用算子是 4 维黎曼几何空间上的波函数和 4 维空间某个紧凑区域中物质场的配置。作用算子的相应特征值决定了该区域外宇宙世界历史的初始状态,在该区域内,度量特征是洛伦兹的,因此存在时间参数。原点区域的边界由三维度量张量的行列式变化率为零这一条件决定。起源区域的大小被解释为初始状态下宇宙的倒数温度。有人认为,在初始状态下,宇宙自身包含一定的质量分布,这与物质场没有直接关系。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Initial State in Quantum Cosmology and the Proper Mass of the Universe
In the Euclidean form of the theory of gravity, where there is no dedicated time parameter, a generalized canonical form of the principle of least action is proposed. On its basis, the quantum principle of least action is formulated, in which the “dynamics” of the universe in the Origin is described by the eigenvector of the action operator—the wave functional on the space of 4D Riemannian geometries and configurations of matter fields in some compact region of 4D space. The corresponding eigenvalue of the action operator determines the initial state for the world history of the universe outside this region, where the metric signature is Lorentzian and, thus, the time parameter exists. The boundary of the Origin region is determined by the condition that the rate of change of the determinant of the 3D metric tensor is zero on it. The size of the Origin is interpreted as a reciprocal temperature of the universe in the initial state. It has been suggested that in the initial state, the universe contains a certain distribution of its own mass, which is not directly related to the fields of matter.
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来源期刊
Universe
Universe Physics and Astronomy-General Physics and Astronomy
CiteScore
4.30
自引率
17.20%
发文量
562
审稿时长
24.38 days
期刊介绍: Universe (ISSN 2218-1997) is an international peer-reviewed open access journal focused on fundamental principles in physics. It publishes reviews, research papers, communications, conference reports and short notes. Our aim is to encourage scientists to publish their research results in as much detail as possible. There is no restriction on the length of the papers.
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