String field theory (SFT) is a formalism in string theory in which the dynamics of relativistic strings is reformulated in the language of quantum field theory.

Jan 4, 2023 · This book provides an introduction to string field theory (SFT). String theory is usually formulated in the worldsheet formalism, which describes a single string (first-quantization). While this...

May 29, 2024 · Applications of string field theory include the description of non-perturbative phenomena such as tachyon condensation and classical solutions, and the resolution of a number of ambiguities that bedevil the world-sheet formulation of perturbative string theory.

This post inaugurates this website on string field theory (SFT) and related topics (string amplitudes, pure spinor formalism…). The goal is to bring together researchers with an interest in this theme by providing an information and communication hub.

Aug 1, 2023 · String Field Theory is a formulation of String Theory as a Quantum Field Theory in target space. It allows to tame the infrared divergences of String Theory and to approach its non-perturbative...

This textbook provides an introduction to string field theory (SFT). String theory is usually formulated in the worldsheet formalism, which describes a single string (first-quantization).

The rest of the title is “String Field Theory.” This is the newest approach to string theory, although the older approaches are continuously developing new twists and imp rovements. The main alternative approach is the quantum mechanical (/analog-model/path-integral/interacting-string-picture/Polyakov/conformal- “field-