论文标题
经典字符串几何形状的字符串宇宙学背景
String Cosmology backgrounds from Classical String Geometry
论文作者
论文摘要
我们基于在$α'$中非扰动的封闭字符串气体的热力学引入了非常早期的宇宙模型。考虑到包含某些各向异性宇宙学背景的完全$α'$校正的方程式扩展到包括某些各向异性的宇宙学背景，我们将在三个不同阶段中描述系统的演变，该阶段由状态的气体方程参数化。使用标准字符串热力学参数，我们从弦刻尺内的各向同性10维宇宙开始，然后将其朝着具有四个大时空维度和六个稳定的内部维度的宇宙发展。
We introduce a very early universe model based on the thermodynamics of a gas of closed strings in a background which is non-perturbative in $α'$. Upon considering the fully $α'$-corrected equations extended to include certain anisotropic cosmological backgrounds, we describe the evolution of the system in three different stages parametrized by the gas' equation of state. Using standard string thermodynamical arguments, we start with an isotropic 10-dimensional universe inside the string scale and evolve it towards a universe with four large spacetime dimensions and six stabilized internal dimensions in the Einstein frame.
