Perturbative computations in string field theory
arXiv:hep-th/0404102 · doi:10.1142/9789812775108_0006
Abstract
These notes describe how perturbative on-shell and off-shell string amplitudes can be computed using string field theory. Computational methods for approximating arbitrary amplitudes are discussed, and compared with standard world-sheet methods for computing on-shell amplitudes. These lecture notes are not self-contained; they contain the material from W. Taylor's TASI 2003 lectures not covered in the recently published ``TASI 2001'' notes {\tt hep-th/0311017} by Taylor and Zwiebach, and should be read as a supplement to those notes.
17 pages; 2003 TASI lecture notes, supplement to 2001 TASI lectures by Taylor and Zwiebach