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Coupled dark energy: a dynamical analysis with complex scalar field

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arxiv 1507.00902 v3 pith:IKO27H5J submitted 2015-07-01 gr-qc hep-th

Ricardo C. G. Landim This is my paper · ORCID
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keywords darkenergyanalysiscomplexcoupleddynamicalfieldfound
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The dynamical analysis for coupled dark energy with dark matter is presented, where a complex scalar field is taken into account and it is considered in the presence of a barothropic fluid. We consider three dark energy candidates: quintessence, phantom and tachyon. The critical points are found and their stabilities analyzed, leading to the three cosmological eras (radiation, matter and dark energy), for a generic potential. The results presented here enlarge the previous analyses found in the literature.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Dark Energy Is Not That Into You: Variable Couplings after DESI DR2 BAO

    astro-ph.CO 2025-08 conditional novelty 4.0 of 10

    With DESI DR2 data, one interacting dark sector model with a time-dependent coupling shows a nonzero coupling at more than 95% CL, but Bayesian evidence still favors Lambda-CDM.

  2. Autonomous Dynamical System of Einstein-Gauss-Bonnet Cosmologies

    gr-qc 2019-08 conditional novelty 4.0 of 10

    A phase space analysis of Einstein-Gauss-Bonnet cosmology finds a stable equilibrium and a heteroclinic orbit, but the equilibrium requires the Gauss-Bonnet coupling to vanish and the orbit violates the Friedmann constraint.

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