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Dynamics of interacting dark energy model in Einstein and Loop Quantum Cosmology

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arxiv 0808.3482 v2 pith:EURZH3JS submitted 2008-08-26 gr-qc

Songbai Chen , Bin Wang , Jiliang Jing This is my paper · ORCID
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keywords cosmologydarkeinsteinloopquantumdynamicsenergyphase
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We investigate the background dynamics when dark energy is coupled to dark matter in the universe described by Einstein cosmology and Loop Quantum Cosmology. We introduce a new general form of dark sector coupling, which presents us a more complicated dynamical phase space. Differences in the phase space in obtaining the accelerated scaling attractor in Einstein cosmology and Loop Quantum Cosmology are disclosed.

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  1. Kinetic coupled tachyon: A dynamical system analysis

    gr-qc 2024-12 conditional novelty 6.0 of 10

    A kinetically coupled tachyon dark energy model admits a new stable scaling attractor for a range of coupling and potential parameters, providing a mechanism to keep dark energy and dark matter densities comparable.

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