The origin of the universe and the Ali primordial gravitational waves detection

ZHANG Xin-Min; SU Meng; LI Hong; WAN You-Ping; CAI Yi-Fu; LI Ming-Zhe; PIAO Yun-Song

doi:10.7693/wl20160506

PHYSICS > 2016 > 45(5): 320-326. > DOI: 10.7693/wl20160506

ZHANG Xin-Min, SU Meng, LI Hong, WAN You-Ping, CAI Yi-Fu, LI Ming-Zhe, PIAO Yun-Song. The origin of the universe and the Ali primordial gravitational waves detection[J]. PHYSICS, 2016, 45(5): 320-326. DOI: 10.7693/wl20160506

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The origin of the universe and the Ali primordial gravitational waves detection

(1 Theoretical Physics Division,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)
(2 Department of Physics,Massachusetts Institute of Technology,Cambridge MA 02139,Massachusetts,America)
(3 Particle Astrophysics Center,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)
(4 Department of Astronomy,University of Science and Technology of China,Hefei 230026,China)
(5 The Interdisciplinary Center for Theoretical Study,University of Science and Technology of China,Hefei 230026,China)
(6 School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China)

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Received Date: May 03, 2016
Revised Date: May 09, 2016
Published Date: May 11, 2016

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Abstract

The hot Big Bang cosmology has achieved numerous successes in the past decades in describing the evolution of our universe, but several conceptual issues remain to be addressed. Accordingly, a potentially revolutionary breakthrough is expected within modern cosmology in near future. The goal of probing the origin of our universe and its evolution has become one major challenge for scientists around the world, and its importance has be appreciated and highlighted in the recently released 13th Five-Year Plan by Chinese government. Very early universe models, such as inflation and bounce, predicted an existence of primordial gravitational waves (GWs), but these signals have not yet been observed by experiments. Unlike the GW signals originated from black holes as has been detected by the LIGO team, these primordial GWs were pro-duced right after the Big Bang, and hence, would carry fruitful information about the very early universe.In addition, the frequency band of primordial GWs is extremely low, which may open a brand-new window for the next breakthrough of GW detections. In this article, we will briefly introduce the Chinese Ali Project and the associated scientific topics.
- origin of the universe,
- primordial gravitational waves,
- Ali Project

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