Inverse volume corrections to emergent tachyonic inflation in loop quantum cosmology
Wu, PX; Zhang SN(张双南); Zhang, SN; Yu, HW
刊名JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
2009
期号5页码:7
关键词physics of the early universe quantum gravity phenomenology cosmic singularity inflation
学科分类Astronomy & Astrophysics; Physics
DOI10.1088/1475-7516/2009/05/007
通讯作者[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 ; Yu, Hongwei] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China ; [Wu, Puxun ; Yu, Hongwei] Hunan Normal Univ, Inst Phys, Changsha 410081, 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
文章类型Article
英文摘要The emergent model in the context of loop quantum cosmology with a tachyon scalar field is studied. We find that there is a center equilibrium point in the semiclassical region and a saddle point in the classical region. If the potential of the tachyon field satisfies some conditions, the universe can stay at the center equilibrium point past-eternally and then oscillate infinitely around this point with the tachyon climbing up its potential. Once the potential reaches a critical value, these two equilibrium points coincide with each other and the oscillation phase is broken by an emergent inflation. In order to obtain a successful emergent tachyon inflation, a constraint on. (phi) over dot(2) of tachyon is required.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
研究领域[WOS]Astronomy & Astrophysics ; Physics
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语种英语
WOS记录号WOS:000267775700015
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被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240348
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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Wu, PX,Zhang SN,Zhang, SN,et al. Inverse volume corrections to emergent tachyonic inflation in loop quantum cosmology[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2009(5):7.
APA Wu, PX,张双南,Zhang, SN,&Yu, HW.(2009).Inverse volume corrections to emergent tachyonic inflation in loop quantum cosmology.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(5),7.
MLA Wu, PX,et al."Inverse volume corrections to emergent tachyonic inflation in loop quantum cosmology".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .5(2009):7.
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