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个人简介
My research focuses on cosmology and related issues of theoretical physics. I have done extensive work on the theory of the cosmic microwave background radiation and the ways in which it constrains our models of the universe. Current microwave observations, combined with optical observations of the large-scale galaxy distribution, cosmic abundances of light elements, and the supernova-1a Hubble diagram, combine to give tight constraints on the properties of the universe. The resulting "standard model" fits most observations well, but is troubling theoretically: our best guess says that only 4 percent of the universe's energy density is in the form of ordinary matter, 26 percent is made of as-yet undetected dark matter (which does not interact either via the strong or electromagnetic forces), and the remaining 70 percent is in an even stranger "dark energy", evenly distributed in space and having a negative effective pressure. Theorists have a number of good candidates for the dark matter particles, which are currently being pursued by many experimental groups, including the high energy experiment group at Pitt. Current ideas as to the nature of dark energy are all highly speculative.
研究兴趣
论文共 231 篇作者统计合作学者相似作者
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arxiv(2024)
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MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETYno. 3 (2024): 2274-2288
Niall MacCrann,Blake D. Sherwin,Frank J. Qu,Toshiya Namikawa,Mathew S. Madhavacheril, Irene Abril-Cabezas,Rui An,Jason E. Austermann,Nicholas Battaglia, Elia S. Battistelli, James A. Beall,Boris Bolliet,
Frank Qu,Blake D. Sherwin, Mathew S. Madhavacheril,Dongwon Han, Kevin T. Crowley, Irene Abril-Cabezas, Peter A. R. Ade,Simone Aiola, Tommy Alford, Mandana Amiri,Stefania Amodeo, Rui An,
ASTROPHYSICAL JOURNALno. 2 (2024): 112
Deyan P. Mihaylov,Yashar Akrami,Craig J. Copi,Andrew H. Jaffe,Arthur Kosowsky,Pip Petersen,Glenn D. Starkman,Andrius Tamosiunas,Johannes R. Eskilt,Özenç Güngör, Samanta Saha,Quinn Taylor
arxiv(2024)
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HAL (Le Centre pour la Communication Scientifique Directe) (2023)
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