70 citations · 754 across the 43 of their papers we have counts for
45 papers
Boundary observables in string field theory
Klaus Kaja, Carlo Maccaferri, Ulisses Portugal +1
Starting from the gauge invariant action for free string field theory with boundary recently constructed in 2506.05969, we define new gauge invariant observables which are analogou…
Gauge-invariant action for free string field theory with boundary
Carlo Maccaferri, Alberto Ruffino, Jakub Vošmera
We construct fully gauge-invariant kinetic terms for open and closed string field theories on a target space with boundary. This is realized by promoting the gauge parameters at th…
Boundary Modes in String Field Theory
Carlo Maccaferri, Riccardo Poletti, Alberto Ruffino +1
We discuss the construction of boundary contributions to free string field theory actions in the context of the bosonic string. We show that it is generally possible to obtain a we…
Bulk-induced D-brane deformations and the string coupling constant
Carlo Maccaferri, Alberto Ruffino, Jakub Vošmera
We consider computing the on-shell disk action of open-closed string field theory as a gauge-invariant way of capturing the shift in D-brane tension that is induced by a deformatio…
Adding stubs to quantum string field theories
Carlo Maccaferri, Riccardo Poletti, Alberto Ruffino +1
Generalizing recent work by Schnabl-Stettinger and Erbin-Firat, we outline a universal algebraic procedure for `adding stubs' to string field theories obeying the BV quantum master…
Introduction to String Theory
Carlo Maccaferri, Fabio Marino, Beniamino Valsesia
These are the lecture notes of the introductory String Theory course held by one of the authors for the master program of Theoretical Physics at Turin University. The world-sheet a…