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Kavli Institute for Cosmology, Cambridge



Oct 2019 - present: Newton-Kavli Fellow at the Kavli Institute for Cosmology (KICC), Institute of Astronomy (IoA), and Department of Applied Mathematics and Theoretical Physics (DAMTP), University of Cambridge

Oct 2019 - present: Research associate at Homerton College, Cambridge

Sep 2015 - Sep 2019: PhD in Theoretical Physics and research assistant at the Oskar Klein Centre for Cosmoparticle Physics (OKC), Stockholm University (advisors: Prof. Katherine Freese and Prof. Lars Bergström)

Jan 2015 - Aug 2015: Long-term research visit at the Niels Bohr Institute (NBI), University of Copenhagen (advisor: Prof. Subir Sarkar)

Mar 2013 - Dec 2014: MSc in Physics at the University of Melbourne and the ARC Centre of Excellence for Particle Physics at the Terascale (advisors: Dr. Robert Foot and Prof. Raymond Volkas)

Sep 2012 - Feb 2013: Erasmus exchange at Imperial College London

Sep 2009 - Jul 2012: BSc in Physics at the University of Trento (advisor: Prof. Valter Moretti)

Sep 2009: Violin Diploma (equivalent to BA) at Santa Cecilia Conservatory, Rome


My research interests lie broadly at the intersection of cosmology, astrophysics, and particle physics. I work at the interface of data analysis, theory, phenomenology, and experiments. The overarching goal of my research is to connect fundamental physics to precision cosmological and astrophysical data. More specifically, my aim through precision cosmological and astrophysical data is: to identify those models which best describe our Universe, and in particular dark matter and dark energy; to constrain the parameters of these models and define goals for future experiments; and likewise to construct viable data-driven theoretical models. This back-and-forth interplay between existing data, future experiments, and theory, represents my main research strength. I am always on the lookout for new exciting ideas and directions.

On the data side, I tackle a wide variety of measurements, ranging from observations of the Cosmic Microwave Background and the clustering of the Large-Scale Structure, to gravitational waves, and horizon-scale images of black hole shadows. On the theory side, my main focus is on models of dark matter, dark energy, cosmic inflation, and gravitation, especially those with the potential to address some of the most important shortcomings of the standard ΛCDM paradigm on both cosmological and astrophysical scales. My research robustly connects these well-motivated fundamental physics scenarios to precision measurements across a wide range of times and scales.

I joined the University of Cambridge in October 2019 as a Newton-Kavli Fellow within the Kavli Institute for Cosmology (KICC) and the Institute of Astronomy (IoA), jointly funded by the Kavli Foundation and the Isaac Newton Trust. I am also affiliated to the Department of Applied Mathematics and Theoretical Physics (DAMTP) and am a research associate at Homerton College. Earlier in 2019 I earned my PhD in Theoretical Physics at Stockholm University (you can read my thesis here), where my primary advisor was Prof. Katherine Freese.


Key publications: 

15 main representative publications (for full list of publications with bibliometric details see my INSPIRE profilemy ADS profile, and my Google Scholar profile):

Other publications: 

See my INSPIRE, ADS, and Google Scholar profiles for a complete list of publications with bibliometric details (of the three, INSPIRE is more accurate and complete)

Other Professional Activities

Awards and Prizes

Selected awards and prizes:

Press Coverage and Media Appearance

My work has been covered in various popular science (and not) magazines, global news websites, and blogs. Below are links to the 10 main articles discussing my work:

Newton-Kavli Fellow
Sunny Vagnozzi

Contact Details

Room K21, Kavli Institute for Cosmology
c/o Institute of Astronomy, University of Cambridge
Madingley Road
Cambridge CB3 0HA, Cambridgeshire
United Kingdom

KICC Annual Report 2020

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