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Physics colloquium | A Breakdown of Standard Cosmology | Chethan Krishnan | April 11

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Abstract: The persistent mismatch between early and late time measurements of the Universe, in particular in the value of the current expansion rate of the Universe, has been called a crisis in modern cosmology. After discussing some background and historical context, I will present my own personal take on what the most conservative resolution(s) may be.

Bio: Upon discovering that he has a Bachelor's degree in electronics from the Indian Institute of Technology, Chennai, Chethan Krishnan quickly course-corrected himself and ended up receiving his Ph.D. In theoretical high energy physics from the University of Texas at Austin in 2006. After postdoctoral fellowships at the Solvay Institute in Brussels and SISSA, Trieste, he is currently permanent faculty at the Center for High Energy Physics in the Indian Institute of Science, Bangalore. His research interests are broad, but centered around string theory. He has written highly cited papers on cosmological supersymmetry breaking, de Sitter vacua in string theory, membranes in M-theory, as well as various aspects of AdS/CFT correspondence and black holes.


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