3 papers
hep-th2025
Diffeomorphism in Closed String Field Theory
Ben Mazel, Charles Wang, Xi Yin
We explain how the spacetime diffeomorphism in the classical bosonic closed string field theory (SFT) is represented as gauge transformations in weakly curved background…
hep-th2024
Conformal Perturbation Theory and Tachyon-Dilaton Eschatology via String Fields
Ben Mazel, Joshua Sandor, Charles Wang +1
We analyze deformations of two-dimensional conformal field theory (CFT) from the perspective of classical bosonic closed string field theory (SFT). The latter can be viewed as a ve…
hep-th2023
Rolling tachyon and the Phase Space of Open String Field Theory
Minjae Cho, Ben Mazel, Xi Yin
We construct the symplectic form on the covariant phase space of the open string field theory on a ZZ-brane in c=1 string theory, and determine the energy of the rolling tachyon so…