4 papers
Generalised Symmetries and Swampland-Type Constraints from Charge Quantisation via Rational Homotopy Theory
Luigi Alfonsi, Hyungrok Kim, William G. A. Luciani
Sati and Schreiber [arXiv:2402.18473, arXiv:2512.12431] have proposed that charge quantisation in quantum field theory and string theory is governed by a homotopy type …
Integrability from Homotopy Algebras
Luigi Alfonsi, Leron Borsten, Mehran Jalali Farahani +3
Homotopy algebraic methods have become increasingly influential in studying field theories. We consider semi-holomorphic Chern-Simons theory and its relation with the principal chi…
On coefficients of operator product expansions for quantum field theories with ordinary, holomorphic, and topological spacetime dimensions
Luigi Alfonsi, Hyungrok Kim
In many quantum field theories (such as higher-dimensional holomorphic field theories or raviolo theories), operator product expansions of local operators can have as coefficients…
Full S-matrices and Witten diagrams with (relative) L-infinity algebras
Luigi Alfonsi, Leron Borsten, Hyungrok Kim +2
The -algebra approach to scattering amplitudes elegantly describes the nontrivial part of the -matrix but fails to take into account the trivial part. We argue that th…