On Hořava-Lifshitz cosmology

Samuel Lepe; Joel Saavedra

doi:10.1007/s10509-014-1793-2

On Hořava-Lifshitz cosmology

Samuel Lepe, Joel Saavedra

INSTITUTE OF PHYSICS

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9 Scopus citations

Abstract

We discuss some aspects of the Horava-Lifshitz cosmology with different matter components considered as dominants at different stages of the cosmic evolution (each stage is represented by an equation of state pressure/density = constant). We compare cosmological solutions from this theory with their counterparts of General Relativity (Friedmann cosmology). At early times, the Horava-Lifshitz cosmology contains a curvature-dependent dominant term which is stiff matter-reminiscent and this fact motivates to discuss, in some detail, this term beside the usual stiff matter component (pressure = density) if we are thinking in the role that this fluid could have played early in the framework of the holographic cosmology. Nevertheless, we show that an early stiff matter component is of little relevance in Horava-Lifshitz cosmology.

Original language	English
Pages (from-to)	839-843
Number of pages	5
Journal	Astrophysics and Space Science
Volume	350
Issue number	2
DOIs	https://doi.org/10.1007/s10509-014-1793-2
State	Published - Apr 2014

Keywords

Cosmology
Horava

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10.1007/s10509-014-1793-2

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@article{c2ec532b10b5420ab0d093ac84ed91af,

title = "On Ho{\v r}ava-Lifshitz cosmology",

abstract = "We discuss some aspects of the Horava-Lifshitz cosmology with different matter components considered as dominants at different stages of the cosmic evolution (each stage is represented by an equation of state pressure/density = constant). We compare cosmological solutions from this theory with their counterparts of General Relativity (Friedmann cosmology). At early times, the Horava-Lifshitz cosmology contains a curvature-dependent dominant term which is stiff matter-reminiscent and this fact motivates to discuss, in some detail, this term beside the usual stiff matter component (pressure = density) if we are thinking in the role that this fluid could have played early in the framework of the holographic cosmology. Nevertheless, we show that an early stiff matter component is of little relevance in Horava-Lifshitz cosmology.",

keywords = "Cosmology, Horava",

author = "Samuel Lepe and Joel Saavedra",

note = "Funding Information: Acknowledgements This work has been supported by COMISI{\'O}N NACIONAL DE CIENCIAS Y TECNOLOG{\'I}A through FONDECYT Grants 1110076 (JS and SL), 1090613 and 1110230 (JS). This work was also partially supported by PUCV-VRIEA grant No. 037.492/2013 (SL) and PUCV grant No. 123.713/2012 (JS).",

year = "2014",

month = apr,

doi = "10.1007/s10509-014-1793-2",

language = "English",

volume = "350",

pages = "839--843",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

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TY - JOUR

T1 - On Hořava-Lifshitz cosmology

AU - Lepe, Samuel

AU - Saavedra, Joel

N1 - Funding Information: Acknowledgements This work has been supported by COMISIÓN NACIONAL DE CIENCIAS Y TECNOLOGÍA through FONDECYT Grants 1110076 (JS and SL), 1090613 and 1110230 (JS). This work was also partially supported by PUCV-VRIEA grant No. 037.492/2013 (SL) and PUCV grant No. 123.713/2012 (JS).

PY - 2014/4

Y1 - 2014/4

N2 - We discuss some aspects of the Horava-Lifshitz cosmology with different matter components considered as dominants at different stages of the cosmic evolution (each stage is represented by an equation of state pressure/density = constant). We compare cosmological solutions from this theory with their counterparts of General Relativity (Friedmann cosmology). At early times, the Horava-Lifshitz cosmology contains a curvature-dependent dominant term which is stiff matter-reminiscent and this fact motivates to discuss, in some detail, this term beside the usual stiff matter component (pressure = density) if we are thinking in the role that this fluid could have played early in the framework of the holographic cosmology. Nevertheless, we show that an early stiff matter component is of little relevance in Horava-Lifshitz cosmology.

AB - We discuss some aspects of the Horava-Lifshitz cosmology with different matter components considered as dominants at different stages of the cosmic evolution (each stage is represented by an equation of state pressure/density = constant). We compare cosmological solutions from this theory with their counterparts of General Relativity (Friedmann cosmology). At early times, the Horava-Lifshitz cosmology contains a curvature-dependent dominant term which is stiff matter-reminiscent and this fact motivates to discuss, in some detail, this term beside the usual stiff matter component (pressure = density) if we are thinking in the role that this fluid could have played early in the framework of the holographic cosmology. Nevertheless, we show that an early stiff matter component is of little relevance in Horava-Lifshitz cosmology.

KW - Cosmology

KW - Horava

UR - http://www.scopus.com/inward/record.url?scp=84896697968&partnerID=8YFLogxK

U2 - 10.1007/s10509-014-1793-2

DO - 10.1007/s10509-014-1793-2

M3 - Article

AN - SCOPUS:84896697968

SN - 0004-640X

VL - 350

SP - 839

EP - 843

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

IS - 2

ER -

On Hořava-Lifshitz cosmology

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Keywords

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