Quantum Spin Systems and Their Operator Algebras

Pedro de M. Rios and Eldar Straume
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Pedro de M. Rios: Universidade de São Paulo, Departamento de Matemática, ICMC
Eldar Straume: Norwegian University of Science and Technology, Department of Mathematical Sciences

Chapter Chapter 3 in Symbol Correspondences for Spin Systems, 2014, pp 25-54 from Springer

Abstract: Abstract This chapter presents the basic mathematical framework for quantum mechanics of spin systems. Much of the material can be found in texts in representation theory (some found within the list of references at the beginning of Chap. 2) and quantum theory of angular momentum (e.g. [13, 14, 16, 23, 46, 63, 65], some of these being textbooks in quantum mechanics which can also be used by the reader not too familiar with the subject as a whole). Our emphasis here is to provide a self-contained presentation of quantum spin systems where, in particular, the combinatorial role of Clebsch-Gordan coefficients and various kinds of Wigner symbols is elucidated, leading to the SO(3)-invariant decomposition of the operator product which, strangely enough, we have not found explicitly done anywhere.

Keywords: Quantum Spin Systems; Clebsch-Gordan Coefficients; Wigner Symbols; Basic Mathematical Framework; Self-contained Presentation (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/978-3-319-08198-4_3

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