变色龙Brans的吸引子、状态发现者和观测测量--Dicke宇宙学
Attractors, Statefinders and Observational Measurement for Chameleonic Brans--Dicke Cosmology
摘要：
研究了变色龙Brans-Dicke模型在FRW宇宙中的应用.一个框架来研究相空间中的稳定性和吸引子的解决方案开发的模型。我们表明，依赖于物质场和稳定性条件，它是可能的，实现幻影般的行为，而不引入幻影场的模型，而稳定性得到满足，幻影交叉发生。研究了不同物质与变色龙标量场相互作用模型的状态探测器参数。我们还比较了我们的模型与目前的观测。
英文摘要：
We investigate chameleonic Brans--Dicke model applied to the FRW universes. A framework to study stability and attractor solutions in the phase space is developed for the model. We show that depending on the matter field and stability conditions, it is possible to realize phantom-like behavior without introducing phantom filed in the model while the stability is fulfilled and phantom crossing occurs. The statefinder parameters to the model for different kinds of matter interacting with the chameleon scalar field are studied. We also compare our model with present day observations.
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