论文标题
宇宙学中的幻影和奇怪的吸引子
Phantoms and strange attractors in cosmology
论文作者
论文摘要
我们研究了重力的宇宙学模型，该模型耦合到三个自我相互作用的标量场，其中一个具有负动力学术语。该理论具有三维二次自主方程式描述的宇宙学解决方案，从而导致奇怪的吸引子。相关的混沌宇宙学表现出高度波动的收缩和膨胀期，在Sitter样期中与长时间稳定的时期交替。
We study a cosmological model of gravity coupled to three, self-interacting scalar fields, one of them with negative kinetic term. The theory has cosmological solutions described by three-dimensional quadratic autonomous equations, leading to strange attractors. The associated chaotic cosmologies exhibit highly fluctuating periods of contraction and expansion, alternating with long, steady periods in a de Sitter-like phase.
