nLab Luigi Alfonsi




Lecturer at the Department of Physics, Astronomy and Mathematics at the University of Hertfordshire and researcher in Mathematical Physics.


My main research interest lies in the global geometric structures underlying the dualities of string theory and M-theory, to join the dots between double field theory, gerbes, generalized geometry, non-geometry and T-folds.

Short bio

PhD in Theoretical Physics at the Centre for Research in String Theory (currently known as Centre for Theoretical Physics) at Queen Mary University of London, under the supervision of Prof. David Berman.

MSc in Quantum Fields and Fundamental Forces at Imperial College London under the supervision of Prof. Chris Hull.

Selected writings

On 2-dimensional Yang-Mills theory

  • Review of non-abelian localization for 22d Yang-Mills Theory, 2017 (pdf)

On global double field theory formulated in higher differential geometry:


  • Luigi Alfonsi, Towards an extended/higher correspondence – Generalised geometry, bundle gerbes and global Double Field Theory (arXiv:2102.10970)

On the geometric quantization of a sigma-model in double field theory:

On other global geometric aspects of theoretical physics (e.g. classical double copy):

PhD thesis:

On higher Kac-Moody algebras:

On derived differential geometry and higher Lie theory cast in (differential) cohesive ( , 1 ) (\infty,1) -topos theory:

On higher geometry (higher differential geometry) in physics:

Invited talks

On non-perturbative BV-BRST formalism with an eye towards M-theory:

  • Classical non-perturbative BV-theory via derived differential geometry and the puzzle of quantisation, seminar talk at Quantum Maths Seminar series at the University of Nottingham, Nottingham, 8th November 2023

  • Luigi Alfonsi, Derived nn-plectic geometry: towards non-perturbative BV-BFV quantisation and M-theory, talk at M-Theory and Mathematics 2023, NYU Abu Dhabi (2023) [web]

  • Classical BV-BFV theory as derived nn-plectic geometry, seminar talk at Monthly Global Diffeology Seminar series, 2nd December 2022

On higher structures in string dualities:

category: people

Last revised on January 18, 2024 at 14:58:45. See the history of this page for a list of all contributions to it.