Qualitative description of the universe in the interacting fluids scheme

Miguel Cruz; Samuel Lepe; Gerardo Morales-Navarrete

doi:10.1016/j.nuclphysb.2019.114623

Qualitative description of the universe in the interacting fluids scheme

Miguel Cruz, Samuel Lepe, Gerardo Morales-Navarrete

INSTITUTE OF PHYSICS

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Abstract

In this work we present a qualitative description of the evolution of a curved universe when we consider the interacting scheme for the constituents of the dark sector. The resulting dynamics can be modeled by a set of Lotka-Volterra type equations. For this model a future singularity is allowed, therefore the cyclic behavior for the energy interchange between the components of the universe is present only at some stage of the cosmic evolution. Due to the presence of the future singularity, the model exhibits global instability.

Original language	English
Article number	114623
Journal	Nuclear Physics B
Volume	943
DOIs	https://doi.org/10.1016/j.nuclphysb.2019.114623
State	Published - Jun 2019

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10.1016/j.nuclphysb.2019.114623

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title = "Qualitative description of the universe in the interacting fluids scheme",

abstract = "In this work we present a qualitative description of the evolution of a curved universe when we consider the interacting scheme for the constituents of the dark sector. The resulting dynamics can be modeled by a set of Lotka-Volterra type equations. For this model a future singularity is allowed, therefore the cyclic behavior for the energy interchange between the components of the universe is present only at some stage of the cosmic evolution. Due to the presence of the future singularity, the model exhibits global instability.",

author = "Miguel Cruz and Samuel Lepe and Gerardo Morales-Navarrete",

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N2 - In this work we present a qualitative description of the evolution of a curved universe when we consider the interacting scheme for the constituents of the dark sector. The resulting dynamics can be modeled by a set of Lotka-Volterra type equations. For this model a future singularity is allowed, therefore the cyclic behavior for the energy interchange between the components of the universe is present only at some stage of the cosmic evolution. Due to the presence of the future singularity, the model exhibits global instability.

AB - In this work we present a qualitative description of the evolution of a curved universe when we consider the interacting scheme for the constituents of the dark sector. The resulting dynamics can be modeled by a set of Lotka-Volterra type equations. For this model a future singularity is allowed, therefore the cyclic behavior for the energy interchange between the components of the universe is present only at some stage of the cosmic evolution. Due to the presence of the future singularity, the model exhibits global instability.

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Qualitative description of the universe in the interacting fluids scheme

Abstract

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