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Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity
Wu, PX; Zhang SN(张双南); Zhang, SN
2008
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Issue6Pages:7
Corresponding Author[Wu, Puxun ; Zhang, Shuang Nan] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China ; [Wu, Puxun ; Zhang, Shuang Nan] Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China ; [Wu, Puxun] Cent S Univ Forestry & Technol, Sch Sci, Changsha 410004, Hunan, Peoples R China ; [Wu, Puxun] Cent S Univ Forestry & Technol, Inst Math Phys, Changsha 410004, Hunan, Peoples R China ; [Zhang, Shuang Nan] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ; [Zhang, Shuang Nan] Univ Alabama, Dept Phys, Huntsville, AL 35899 USA
SubtypeArticle
AbstractThe dynamics of the interacting dark energy model in loop quantum cosmology (LQC) is studied in this paper. The dark energy has a constant equation of state wx and interacts with dark matter through a form 3cH(rho(x) + rho(m)). We find that for the quintessence model (w(x) > -1) the cosmological evolution in LQC is the same as that in classical Einstein cosmology, whereas for phantom dark energy (w(x) < -1), although there are the same critical points in LQC and classical Einstein cosmology, the loop quantum effect significantly reduces the parameter spacetime (c, w(x)) required by stability. If parameters c and wx satisfy the conditions that the critical points are existing and stable, the universe will enter an era dominated by dark energy and dark matter with a constant energy ratio between them, and accelerate forever; otherwise it will enter an oscillatory regime. Comparing our results with the observations we find at 1 sigma confidence level that the universe will accelerate forever.
Keyworddark matter dark energy theory quantum gravity phenomenology
Subject AreaAstronomy & Astrophysics; Physics
DOI10.1088/1475-7516/2008/06/007
URL查看原文
Indexed ByINSPIREHEP ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000257339800027
ADS Bibcode2008JCAP...06..007W
ADS URLhttps://ui.adsabs.harvard.edu/abs/2008JCAP...06..007W
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2008JCAP...06..007W/citations
inspireid785814
inspireURLhttps://inspirehep.net/literature/785814
Citation statistics
Cited Times:41 [INSPIRE]
Cited Times:46 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/240349
Collection粒子天体物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Wu, PX,Zhang SN,Zhang, SN. Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2008(6):7.
APA Wu, PX,张双南,&Zhang, SN.(2008).Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(6),7.
MLA Wu, PX,et al."Cosmological evolution of the interacting phantom (quintessence) model in loop quantum gravity".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .6(2008):7.
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