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Qualitative study in loop quantum cosmology
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DOI：10.1088/1361-6382/aa9311.png)
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Abstract
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This work contains a detailed qualitative analysis, in general relativity and in loop quantum cosmology, of the dynamics in the associated phase space of a scalar field minimally coupled with gravity, whose potential mimics the dynamics of a perfect fluid with a linear equation of state (EoS). Dealing with the orbits (solutions) of the system, we will see that there are analytic ones, which lead to the same dynamics as the perfect fluid, and our goal is to check their stability, depending on the value of the EoS parameter, i.e. to show whether the other orbits converge or diverge to these analytic solutions at early and late times.
Keywords:
cosmic singularity
loop quantum cosmology
qualitative study
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