Research Seminars @ Illinois

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Tailored for undergraduate researchers, this calendar is a curated list of research seminars at the University of Illinois. Explore the diverse world of research and expand your knowledge through engaging sessions designed to inspire and enlighten.

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High Energy Physics Seminar - Hongwan Liu - Fast and Differentiable Big Bang Nucleosynthesis

Event Type
Department of Physics
Room 464
Feb 23, 2024   11:00 am  
Hongwan Liu (University of Chicago)
Brandy Koebbe
Originating Calendar
Physics - High Energy Physics Seminar

The process of Big Bang Nucleosynthesis (BBN) is a crucial test of cosmology. In this talk, I will describe a new code for predicting the primordial elemental abundance due to BBN. This code takes advantage of JAX, a machine learning framework, to enable fast and differentiable predictions of elemental abundances. This allows us to put BBN calculations on the same level of rigor and ease-of-use as cosmic microwave background analyses, taking nuclear rate uncertainties fully into account. The differentiable nature of the code will also allow the use of more sophisticated and efficient methods of parameter estimation beyond e.g. traditional MCMC techniques. 

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