论文标题
宇宙的动力行为：熵力场景
Dynamical behavior of the Universe: an entropic force scenario
论文作者
论文摘要
熵力的假设是宇宙有一个地平线。该视野在运动方程中产生了其他术语。使用动力学系统计算，我们的结果表明，在某些条件下存在暗能量的情况下，该理论的最后一个吸引子将是暗能量时期，但是在没有暗能量的情况下，熵力能量部分将在晚期宇宙中发挥主要作用，并负责加速其扩张。有趣的是，假设熵力项和暗能量具有宇宙能量密度的份额，我们发现，在某些条件下，熵占主导的时期是一个稳定的固定点，而暗能量时期是鞍点。
Entropic force originates in the assumption that there is a horizon for the universe. This horizon gives rise to additional terms in the equations of motion. Using dynamical system calculations, our results show that in the presence of dark energy for certain conditions, the last attractor of this theory will be dark energy epoch, but in the absence of dark energy, entropic force energy portion will have the lead role in the late time universe and is responsible for accelerated expansion of that. Interestingly, assuming both entropic force terms and dark energy to have their share of energy density of the universe, we have found that, in certain conditions entropic force dominated epoch is a stable fixed point while the dark energy epoch is a saddle point.
