中国科学院理论物理研究所机构知识库
Advanced  
ITP OpenIR  > 理论物理所2014年知识产出  > 期刊论文
题名: Preinflationary genesis with CMB B-mode polarization
作者: Liu, ZG ;  Li, H ;  Piao, YS
刊名: PHYSICAL REVIEW D
出版日期: 2014
卷号: 90, 期号:8, 页码:83521
关键词: UNIVERSE
学科分类: Physics
DOI: 10.1103/PhysRevD.90.083521
通讯作者: Liu, ZG (reprint author), Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China.
部门归属: [Liu, Zhi-Guo ;  Piao, Yun-Song] Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China ;  [Li, Hong] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China ;  [Li, Hong] Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China ;  [Piao, Yun-Song] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
英文摘要: Recent B-mode polarization observation seems to imply the tensor tilt n(T) greater than or similar to 1 at large angular scale if the primordial signal is dominated. We show that for a primordial universe, which is in a slowly expanding genesis phase before the slow-roll inflation, the primordial tensor spectrum will get a large-scale cutoff, i.e., n(T) greater than or similar to 1 at large scales while n(T) similar or equal to 0 at small scale. We find that this inflationary scenario not only may be consistent with the observation, but also predicts a large-scale anomaly in BB power spectrum, i.e., due to the large suppression of tensor perturbation amplitude we will hardly see the reionization bump at low-l, which may be falsified by the Planck polarization data.
资助者: Natural Science Foundation of China (NSFC) [11222546]; National Basic Research Program of China [2010CB832804]; NSFC [11322325, 11033005]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000344031500002
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15614
Appears in Collections:理论物理所2014年知识产出 _期刊论文

Files in This Item:

There are no files associated with this item.


Recommended Citation:
Liu, ZG,Li, H,Piao, YS. Preinflationary genesis with CMB B-mode polarization[J]. PHYSICAL REVIEW D,2014,90(8):83521.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Liu, ZG]'s Articles
 [Li, H]'s Articles
 [Piao, YS]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Liu, ZG]‘s Articles
 [Li, H]‘s Articles
 [Piao, YS]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院理论物理研究所 - Feedback
Powered by CSpace