防止虚幻通货膨胀中的永恒性
Preventing eternality in phantom inflation
摘要：
我们已经研究了防止幻影暴胀成为永恒的必要条件。另外允许幻影场和重力之间的非最小耦合，我们提出了缓慢爬升的要求，进行波动的分析，最后我们提取的整体条件，是必要的，以防止永恒。此外，我们验证了我们的结果，明确解决宇宙学方程在一个简单的例子中的指数势，制定的经典运动加上随机效应的波动通过朗之万方程。我们的分析表明，幻影通货膨胀可以是有限的，而不需要额外的奇异机制。
英文摘要：
We have investigated the necessary conditions that prevent phantom inflation from being eternal. Allowing additionally for a nonminimal coupling between the phantom field and gravity, we present the slow-climb requirements, perform an analysis of the fluctuations, and finally we extract the overall conditions that are necessary in order to prevent eternality. Furthermore, we verify our results by solving explicitly the cosmological equations in a simple example of an exponential potential, formulating the classical motion plus the stochastic effect of the fluctuations through Langevin equations. Our analysis shows that phantom inflation can be finite without the need of additional exotic mechanisms.
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