Event· Genova
Foglio-mondo
"Foglio-mondo" is the Italian term for the **worldsheet** in string theory — the two-dimensional surface that a string sweeps out in spacetime as it propagates. Describing physics on this sheet (via a 2D quantum field theory) is the foundational framework of perturbative string theory, where particle interactions arise from the topology of the worldsheet (e.g., splitting and joining of strings).