Dynamical Inflation and Vacuum Selection
Dynamical Inflation and Vacuum Selection
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动态充气和真空选择
DOI：
10.1143/ptp.103.1077
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发表时间：
1999
影响因子：
--
通讯作者：
Tsutomu Yanagida
中科院分区：
文献类型：
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作者：
Ken;Tsutomu Yanagida
我们考虑一种通货膨胀的情景，其中通货膨胀的能量尺度源于规范理论的动态。考虑到模量场的膨胀模型，如膨胀子，我们讨论了这一情景对我们宇宙真空选择的普遍意义，包括时空对称性的确定，特别是由压缩模来描述的维度。原始膨胀的能量尺度被认为在引力尺度(∗)之下，这可以解释宇宙微波背景辐射存在微小涨落的原因。1)通货膨胀等级标度的起源可能是规范理论动力学引起的维度变形。∗∗)规范理论的膨胀动力学有望对宇宙的演化产生深刻的影响，因为膨胀过程可能通过相应的膨胀真空的空间扩展的显性扩展来决定我们宇宙的真空。在这篇文章中，我们考虑了这种动力学膨胀对于我们宇宙的真空选择的一般含义，包括时空对称性的确定，特别是用压缩模来描述的维度。我们考虑一个伸缩子固定和拓扑膨胀的混合模型，∗∗∗)作为动力学膨胀的一个简单例子，它包含了对我们宇宙真空的膨胀选择。让我们考虑一个具有伸缩子Φ和膨胀子φ超多重态的四维超对称场论，其超势具有如下形式
We consider an inflationary scenario in which the energy scale of inflation stems from gauge theory dynamics. Reflecting on inflationary models with moduli fields such as a dilaton, we discuss generic implications of the scenario for vacuum selection of our universe, including determination of spacetime symmetries, in particular, dimension, which is described by the compactification moduli. The energy scale of primordial inflation is thought to be hierarchically below the gravitational scale, ∗) which could account for the existence of tiny fluctuations of the cosmic microwave background radiation. 1) The origin of the hierarchical scale of inflation may be dimensional transmutation induced by gauge theory dynamics. ∗∗) Gauge theory dynamics for inflation are expected to induce profound effects on the evolution of the universe, since the inflationary process may determine the vacuum of our universe through dominant expansion of the spatial extension of the corresponding inflationary vacuum. In this paper, we consider generic implications of such dynamical inflation for vacuum selection of our universe, including determination of spacetime symmetries, in particular, dimension, which is described by the compactification moduli. We consider a mixed model of dilaton fixing 2) and topological inflation 3),∗∗∗) as a simple example of dynamical inflation that incorporates an inflationary selection of the vacuum of our universe. Let us consider a four-dimensional supersymmetric field theory with dilaton Φ and inflaton φ supermultiplets, whose superpotential takes the form