Algebraic Quantum Field Theory
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Publication:3304281
DOI10.1007/978-3-030-38941-3_1zbMATH Open1448.81423arXiv1904.04051OpenAlexW3106027077MaRDI QIDQ3304281
Author name not available (Why is that?)
Publication date: 5 August 2020
Published in: (Search for Journal in Brave)
Abstract: We give a pedagogical introduction to algebraic quantum field theory (AQFT), with the aim of explaining its key structures and features. Topics covered include: algebraic formulations of quantum theory and the GNS representation theorem, the appearance of unitarily inequivalent representations in QFT (exemplified by the van Hove model), the main assumptions of AQFT and simple models thereof, the spectrum condition, Reeh--Schlieder theorem, split property, the universal type of local algebras, and the theory of superselection sectors. The abstract discussion is illustrated by concrete examples. One of our concerns is to explain various ways in which quantum field theory differs from quantum mechanics, not just in terms of technical detail, but in terms of physical content. The text is supplemented by exercises and appendices that enlarge on some of the relevant mathematical background. These notes are based on lectures given by CJF for the International Max Planck Research School at the Albert Einstein Institute, Golm (October, 2018) and by KR at the Raman Research Institute, Bangalore (January, 2019).
Full work available at URL: https://arxiv.org/abs/1904.04051
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