论文标题
参数性暗能量的双型模型
Twinlike models for parametrized dark energy
论文作者
论文摘要
我们研究了涉及一个具有宇宙时间的状态参数方程的宇宙学模型。我们强调了状态方程的一些常见参数化，这是双层理论的上下文中的红移的函数。该过程用于引入具有相同加速参数的不同模型，其能量密度和压力在平面时段。
We study cosmological models involving a single real scalar field that has an equation of state parameter which evolves with cosmic time. We highlight some common parametrizations for the equation of state as a function of redshift in the context of twinlike theories. The procedure is used to introduce different models that have the same acceleration parameter, with the very same energy densities and pressure in flat spacetime.
