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William Giarè, Ph.D.
Hello and welcome to my website!
I'm a theoretical physicist and cosmologist, currently Postdoctoral Researcher at the Department of Physics and Astronomy of the University of Hawaiʻi.
I obtained a PhD in Astrophysics at Sapienza, University of Rome. Subsequently, I held a post-doctoral research fellowship at the INFN Center for Advanced Studies Galileo Galilei Institute for Theoretical Physics and a Research Associate position in Theoretical Cosmology at the University of Sheffield.
My research uses cosmology as a laboratory for fundamental physics, testing the foundations of our current understanding of the Universe.
I work at the interface between theory and data, combining theoretical modelling, numerical cosmology, and statistical inference to investigate fundamental questions about the early Universe, the nature of dark matter and dark energy, neutrino physics, gravity, and cosmological tensions.
A key aspect of my research is connecting theoretical ideas with observations, particularly through the Cosmic Microwave Background and the Large-Scale Structure of the Universe. I also explore emerging multi-messenger probes, from gravitational waves to gamma-ray bursts and quasars. To this end, I develop and use numerical and statistical tools, including Boltzmann solvers, Bayesian parameter-estimation methods, and machine-learning approaches to cosmological data analysis.
If you have any questions about me or my research feel free to contact me!
[2025-present] - Postdoc
University of Hawaiʻi
[2022-2025] - Postdoc
University of Sheffield
[2021-2022] - Postdoc
Galileo Galilei Institute & INFN Rome
[2018-2021] - PhD
Sapienza University & INFN Rome
Office Address:
Office 333
Watanabe Hall
University of Hawaiʻi at Mānoa
2505 Correa Road
Honolulu, HI 96822, USA
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