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Cai, Rong-Gen ; Wang, Shao-Jiang
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| Mass bound for primordial black hole from trans-Planckian censorship conjecture | |
| Source Publication | PHYSICAL REVIEW D
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| Language | 英语 |
| Keyword | INFLATIONARY UNIVERSE FLATNESS CREATION HORIZON LIMITS |
| Abstract | The recently proposed trans-Planckian censorship conjecture (TCC) imposes a strong constraint on the inflationary Hubble scale, of which the upper bound could be largely relaxed by considering a noninstantaneous reheating history. In this paper we will show that, if the primordial black holes (PBHs) are formed at reentry in the radiation-dominated era from the enhanced curvature perturbations at small scales, the TCC would impose a lower bound on the PBH mass M-PBH > gamma(H-end = 10(9) GeV)(2) M-circle dot regardless of the details for reheating history, where. is the collapse efficiency factor and Hend is the Hubble scale at the end of inflation. In particular, the current open window for PBHs to make up all the cold dark matter could be totally ruled out if the inflationary Hubble scale is larger than 10 TeV. For the case of PBHs formed in an early matter-dominated era, an upper mass bound is obtained. |
| 2020 | |
| ISSN | 2470-0010 |
| Volume | 101Issue:4Pages:43508 |
| Cooperation Status | 国际 |
| Subject Area | Astronomy & Astrophysics ; Physics |
| MOST Discipline Catalogue | Astronomy & Astrophysics ; Physics, Particles & Fields |
| DOI | 10.1103/PhysRevD.101.043508 |
| Indexed By | SCIE |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/27021 |
| Collection | SCI期刊论文 |
| Affiliation | 1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Tufts Univ, Tufts Inst Cosmol, Dept Phys & Astron, 574 Boston Ave, Medford, MA 02155 USA |
| Recommended Citation GB/T 7714 | Cai, Rong-Gen,Wang, Shao-Jiang. Mass bound for primordial black hole from trans-Planckian censorship conjecture[J]. PHYSICAL REVIEW D,2020,101(4):43508. |
| APA | Cai, Rong-Gen,&Wang, Shao-Jiang.(2020).Mass bound for primordial black hole from trans-Planckian censorship conjecture.PHYSICAL REVIEW D,101(4),43508. |
| MLA | Cai, Rong-Gen,et al."Mass bound for primordial black hole from trans-Planckian censorship conjecture".PHYSICAL REVIEW D 101.4(2020):43508. |
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