论文标题
量子重力中的bianchi-i宇宙学
Bianchi-I cosmology in quantum gravity
论文作者
论文摘要
重力的确切重新归一化基团方程导致牛顿常数和宇宙常数的量子校正。使用此过程，我们在晚期研究了Bianchi-I宇宙学模型。特别是，我们在不同方向上获得了尺度因子，并观察到它们最终演变成辐射的Friedmann-Lema-Robertson-Walker（FLRW）宇宙。但是，对于僵硬的物质，宇宙显示了像卡斯纳一样的行为。演讲基于我们在\ cite {mandal：2019xlg}中发表的工作。
The exact renormalization group flow equations for gravity lead to quantum corrections of Newton's constant and cosmological constant. Using this we investigate the Bianchi-I cosmological model at late times. In particular, we obtain the scale factors in different directions, and observe that they eventually evolve into Friedmann-Lemaître-Robertson-Walker (FLRW) universe for radiation. However, for stiff matter the universe shows a Kasner like behaviour. The presentation is based on our work published in \cite{Mandal:2019xlg}.
