Titlebook: String Field Theory; A Modern Introductio Harold Erbin Textbook 2021 Springer Nature Switzerland AG 2021 String scattering amplitudes.Off-s

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978-3-030-65320-0Springer Nature Switzerland AG 2021

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String Field Theory978-3-030-65321-7Series ISSN 0075-8450 Series E-ISSN 1616-6361

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0075-8450 xercises and computations.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). While this approach is intuitive and could be pushed far due to the exceptional proper

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Conformal Field Theory on the Plane space, Hermitian and BPZ conjugations..As described at the beginning of Chap. ., we use spacetime notations for the coordinates, but follow otherwise the normalization for the worldsheet. In particular, integrals are normalized by 2.. However, the spatial coordinate on the cylinder is still written as . to avoid confusions: .. = (., .).

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Introduction,ng the central features of string theory, we describe the most important concepts of the worldsheet formulation. Then, we explain the reasons leading to string field theory (SFT) and outline the ideas which will be discussed in the rest of the book.

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