Andrea Guerrieri – Theoretical Physicist
Royal Society University Research Fellow at City, University of London. Research in scattering amplitudes, S-matrix bootstrap, quantum field theory, collider physics, and non-perturbative methods.
Lecturer & Royal Society University Research Fellow
City St George’s, University of London
university webpage
About
I am a theoretical physicist working at the interface of scattering amplitudes, the S-matrix bootstrap, and non-perturbative quantum field theory methods. My research combines first-principles constraints with modern optimization techniques to explore strongly interacting systems, collider observables, and quantum gravity.
Quantum fields and strings, scattering amplitudes, S-matrix Bootstrap, non-perturbative physics.
See also: Curriculum Vitae
📢 Announcements
Applications are now open for the 2026 Aspen Summer Program
From First Principles to Future Colliders: Amplitudes, Bootstraps & Energy Correlators
👉 Apply here
(Co-organized with N. Arkani-Hamed, C. Cesarotti, and I. Moult.)
Bootstrap 2026 in London
Registration opened!
👉 Apply here
(Co-organized with S. Chester, P. Kravchuk, and A. Stergiou.)
Postdoc position in S-matrix Bootstrap
Deadline December 17
👉 More details here
Research
My work is the expression of my mixed interest in particle physics phenomenology, mathematics, and numerical methods for strongly interacting systems. Here is a short list of topics I have covered in my latest works.
- S-matrix Bootstrap and non-perturbative constraints on QFT observables
- Applications to QCD, hadron spectroscopy, and collider physics
- Constraints on quantum gravity and UV completions of the Standard Model
- Montecarlo for matrix models
Publications:
INSPIRE · Google Scholar
Talks & Lectures
See the dedicated page:
👉 Talks
Events & Programs
Teaching
At City St George’s, University of London:
- AS2052 – Calculus & Linear Algebra, Bayes Business School
Open Questions & Notes
A (very incomplete) list of directions I find exciting today:
- Bootstrap applications to QCD
- Non-perturbative bounds on total cross sections for fermions
- Bootstrap Quantum Mechanics and Matrix Models
- Constraints on higher-derivative corrections to supergravity $D^4 R^4, D^6 R^4,\dots$ from unitarity
See: 👉 Open Questions
Contact
Department of Mathematics
City St George’s, University of London
Email: andrea.guerrieri@city.ac.uk