论文标题

BFSS矩阵理论的新兴早期宇宙宇宙学

Emergent Early Universe Cosmology from BFSS Matrix Theory

论文作者

Brahma, Suddhasattwa, Brandenberger, Robert, Laliberte, Samuel

论文摘要

BFSS矩阵模型是弦理论的建议的非扰动定义。从该矩阵模型的热状态开始,我们展示了空间和时间如何动态出现。 IKKT矩阵模型的结果表明,$ SO(9)空间的对称性自发地破坏至$(3)\ times so(6)$,而三维子空间变得大。鉴于宇宙的这种初始状态,我们表明宇宙学扰动和带有尺度不变光谱的重力波,而无需假设宇宙学通胀的早期阶段。大爆炸奇点会自动解决。

The BFSS matrix model is a suggested non-perturbative definition of string theory. Starting from a thermal state of this matrix model, we show how space and time can emerge dynamically. Results from the IKKT matrix model indicate that the $SO(9)$ symmetry of space is spontaneously broken to $SO(3) \times SO(6)$, with the three-dimensional subspace becoming large. Given this initial state for the universe, we show that cosmological perturbations and gravitational waves with scale-invariant spectra are generated, without the need of postulating an early phase of cosmological inflation. The Big Bang singularity is automatically resolved.

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