Physical Procession in the system with cosmological constant and dynamics of in homogeneous space-times

宇宙常数系统中的物理过程和均匀时空动力学

• 批准号: 04640312
• 负责人: MAEDA Keiichi
• 金额: $ 1.34万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04640312/
• 关键词: cosmological constant; inhomogeneous spacetime; inflation; superradiance; non-linear physics; Einstein equations; vacuum energy

We investigate dynamics of inhomogeneous spacetime with a cosmological constant and find a universal picture : There is a critical value of the Abbott-Deser mass, beyond which localized inhomogeneities do not collapse into black holes. Consequently, black holes with large mass cannot be formed in the asymptotically de Sitter space-time, unless a naked singularity is formed. This result suggests a possible inflationary scenario for inhomogeneous universes.

我们研究了具有宇宙学常数的非均匀时空的动力学，并发现了一个普遍的图景：存在一个临界值的Abbott-Deser质量，超过这个临界值，局部的非均匀性不会坍缩成黑洞。因此，大质量黑洞不能在渐近德西特时空中形成，除非形成裸奇点。这一结果表明非均匀宇宙可能存在暴胀情景。

项目成果

K.Nakao et al: "Numerical Study of the Cosmic No Hair Conjecture II" Physical Review D. 47. 3194-3202 (1993)

K.Nakao 等人：《宇宙无毛猜想 II 的数值研究》物理评论 D. 47. 3194-3202 (1993)

Y.Kitada and K.Maeda: "Generality of Power-Law Inflation in the Bianchi-IX Spacetime" 6th Marcel Grossmann Meeting on General Relativity. 636-638 (1992)

Y.Kitada 和 K.Maeda：“Bianchi-IX 时空中幂律膨胀的一般性”第六届马塞尔·格罗斯曼广义相对论会议。

N.Sakai and K.Maeda: "Bubble Dynamics and Space-Time Structure in Extended Inflation" Relativity and Gravitation. 269-277 (1992)

N.Sakai 和 K.Maeda：“扩展膨胀中的气泡动力学和时空结构”相对论和引力。

Y.Kitada and K.Maeda: "Cosmic No-Hair Theorem in Homogeneous Spacetimes" International Symposium on Quantum Physics and the Universe. 461-464 (1993)

Y.Kitada 和 K.Maeda：“均匀时空中的宇宙无毛定理”量子物理与宇宙国际研讨会。

N.Sakai and K.Maeda: "Bubbles in Extended Inflation and Multi-Production of Universes" International Symposium on Quantum Physics and the Universe. 469-472 (1993)

N.Sakai 和 K.Maeda：“宇宙膨胀和多重生产中的泡沫”量子物理与宇宙国际研讨会。