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What is string field theory (SFT)?
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. This is accomplished at the level of perturbation theory by finding a collection of vertices for joining and splitting strings, as well as string propagators , that give a Feynman ...
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interact with each other.
The history of string theory spans several decades of intense research including two superstring revolutions. Through the combined efforts of many researchers, string theory has developed into a broad and varied subject with connections to quantum gravity, particle and condensed matter physics, cosmology, and pure mathematics.
String theory combines the two theories by assuming there are multiple universes and dimensions beyond the ones we know. After getting his PhD from the University of California, Berkeley, Michio joined in on this challenge. He co-founded string field theory, a subset of string theory.
Jan 4, 2023 · String Field Theory -- A Modern Introduction. Harold Erbin. 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).
- arXiv:2301.01686 [hep-th]
- High Energy Physics-Theory (hep-th)
String theory. Fundamental objects. String. Cosmic string. Brane. D-brane. Perturbative theory. Bosonic. Superstring ( Type I, Type II, Heterotic) Non-perturbative results. S-duality. T-duality. U-duality. M-theory. F-theory. AdS/CFT correspondence. Phenomenology. Cosmology. Landscape. Mathematics. Geometric Langlands correspondence.
Home. Textbook. Authors: Harold Erbin. An essential text to get acquainted with string field theory. Pedagogical primer suitable for a one-semester course. Contains many examples, exercises and computations. Part of the book series: Lecture Notes in Physics (LNP, volume 980) 28k Accesses. 7 Citations. 48 Altmetric. Sections. Table of contents.