Holography and matter creation revisited

Víctor H. Cárdenas; Miguel Cruz; Samuel Lepe

doi:10.1016/j.dark.2022.101122

Holography and matter creation revisited

Víctor H. Cárdenas, Miguel Cruz, Samuel Lepe

INSTITUTE OF PHYSICS

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Abstract

The consideration of the holographic dark energy approach and matter creation effects in a single cosmological model is carried out in this work accordingly, we discuss some cases of interest. We test this cosmological proposal against recent observations. Considering the best fit values obtained for the free cosmological parameters, the model exhibits a transition from a decelerated cosmic expansion to an accelerated one. The deceleration–acceleration transition cannot be determined consistently from the coincidence parameter for this kind of model. At effective level the parameter state associated to the whole energy density contribution describes a quintessence scenario in the fluid analogy at present time.

Original language	English
Article number	101122
Journal	Physics of the Dark Universe
Volume	37
DOIs	https://doi.org/10.1016/j.dark.2022.101122
State	Published - Sep 2022

Keywords

Cosmic expansion
Creation
Dark energy
Holography

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10.1016/j.dark.2022.101122

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abstract = "The consideration of the holographic dark energy approach and matter creation effects in a single cosmological model is carried out in this work accordingly, we discuss some cases of interest. We test this cosmological proposal against recent observations. Considering the best fit values obtained for the free cosmological parameters, the model exhibits a transition from a decelerated cosmic expansion to an accelerated one. The deceleration–acceleration transition cannot be determined consistently from the coincidence parameter for this kind of model. At effective level the parameter state associated to the whole energy density contribution describes a quintessence scenario in the fluid analogy at present time.",

keywords = "Cosmic expansion, Creation, Dark energy, Holography",

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AU - Cárdenas, Víctor H.

AU - Cruz, Miguel

AU - Lepe, Samuel

PY - 2022/9

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AB - The consideration of the holographic dark energy approach and matter creation effects in a single cosmological model is carried out in this work accordingly, we discuss some cases of interest. We test this cosmological proposal against recent observations. Considering the best fit values obtained for the free cosmological parameters, the model exhibits a transition from a decelerated cosmic expansion to an accelerated one. The deceleration–acceleration transition cannot be determined consistently from the coincidence parameter for this kind of model. At effective level the parameter state associated to the whole energy density contribution describes a quintessence scenario in the fluid analogy at present time.

KW - Cosmic expansion

KW - Creation

KW - Dark energy

KW - Holography

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DO - 10.1016/j.dark.2022.101122

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SN - 2212-6864

VL - 37

JO - Physics of the Dark Universe

JF - Physics of the Dark Universe

M1 - 101122

ER -

Holography and matter creation revisited

Abstract

Keywords

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