Probing primordial gravitational waves: Ali CMB Polarization Telescope
文献类型：期刊论文
| 作者 | Li, Hong1; Li, Si-Yu1; Liu, Yang2,3; Li, Yong-Ping2,3; Cai, Yifu4; Li, Mingzhe5; Zhao, Gong-Bo6,7; Liu, Cong-Zhan1; Li, Zheng-Wei1; Xu, He1 |
| 刊名 | NATIONAL SCIENCE REVIEW
 |
| 出版日期 | 2019 |
| 卷号 | 6期号:1页码:145-154 |
| 关键词 | primordial gravitational waves cosmic microwave background Ali CMB Polarization Telescope |
| ISSN号 | 2095-5138 |
| DOI | 10.1093/nsr/nwy019 |
| 英文摘要 | In this paper, we will give a general introduction to the Ali CMB Polarization Telescope (AliCPT) project, which is a Sino-US joint project led by the Institute of High Energy Physics and involves many different institutes in China. It is the first ground-based Cosmic Microwave Background (CMB) polarization experiment in China and an integral part of China's Gravitational-wave Program. The main scientific goal of the AliCPT project is to probe the primordial gravitational waves (PGWs) originating from the very early Universe. The AliCPT project includes two stages. The first stage, referred to as AliCPT-1, is to build a telescope in the Ali region of Tibet at an altitude of 5250 meters. Once completed, it will be the highest ground-based CMB observatory in the world and will open a new window for probing PGWs in the northern hemisphere. The AliCPT-1 telescope is designed to have about 7000 transition-edge sensor detectors at 95 GHz and 150 GHz. The second stage is to have a more sensitive telescope (AliCPT-2) with more than 20 000 detectors. Our simulations show that AliCPT will improve the current constraint on the tensor-to-scalar ratio r by one order of magnitude with three years' observation. Besides the PGWs, AliCPT will also enable a precise measurement of the CMB rotation angle and provide a precise test of the CPT symmetry. We show that three years' observation will improve the current limit by two orders of magnitude. |
| WOS关键词 | INFLATIONARY UNIVERSE ; BOUNCING COSMOLOGIES ; EMERGENT UNIVERSE ; CPT-VIOLATION ; FLATNESS ; HORIZON |
| 资助项目 | National Natural Science Foundation of China[11653001] ; National Natural Science Foundation of China[11653002] ; National Natural Science Foundation of China[11653005] ; National Natural Science Foundation of China[11653004] ; CAS pilot B project[XDB23020000] ; Sino-US cooperation project[2016YFE0104700] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000462696500026 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS pilot B project ; CAS pilot B project ; Sino-US cooperation project ; Sino-US cooperation project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS pilot B project ; CAS pilot B project ; Sino-US cooperation project ; Sino-US cooperation project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS pilot B project ; CAS pilot B project ; Sino-US cooperation project ; Sino-US cooperation project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; CAS pilot B project ; CAS pilot B project ; Sino-US cooperation project ; Sino-US cooperation project |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/25741]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Li, Si-Yu |
| 作者单位 | 1.Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Theoret Phys Div, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Sci & Technol China, Dept Astron, CAS Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China 5.Univ Sci & Technol China, Interdisciplinary Ctr Theoret Study, Hefei 230026, Anhui, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 7.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England 8.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 9.Stanford Univ, Phys Dept, Stanford, CA 94305 USA |
| 推荐引用方式 GB/T 7714 | Li, Hong,Li, Si-Yu,Liu, Yang,et al. Probing primordial gravitational waves: Ali CMB Polarization Telescope[J]. NATIONAL SCIENCE REVIEW,2019,6(1):145-154. |
| APA | Li, Hong.,Li, Si-Yu.,Liu, Yang.,Li, Yong-Ping.,Cai, Yifu.,...&Zhang, Xinmin.(2019).Probing primordial gravitational waves: Ali CMB Polarization Telescope.NATIONAL SCIENCE REVIEW,6(1),145-154. |
| MLA | Li, Hong,et al."Probing primordial gravitational waves: Ali CMB Polarization Telescope".NATIONAL SCIENCE REVIEW 6.1(2019):145-154. |
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来源：国家天文台
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