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Spin angular momentum

Efstratios Manousakis

Published Nov 1, 2015• 0 citations
Publisher

Abstract

Abstract This chapter discusses the case of spin as an internal angular momentum-like degree of freedom. It considers and analyzes the case of spin-1/2 explicitly. It also discusses the coupling of spin to an externally applied magnetic field. Furthermore, it discusses rotations in the spin space.
DOI
10.1093/acprof:oso/9780198749349.003.0023

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Abstract In order to prepare for the discussion of quantum many-particle Hamiltonians, for example the Heisenberg quantum spin chain Hamiltonian, this chapter examines the concept of angular momentum in quantum mechanics, especially the coupling of spin-2 operators for several quantum spins. It begins with the general theory of angular momentum for a single quantum particle, especially for a single spin-1, described by Pauli spin matrices, and then extends to the theory of angular momentum for several particles, again especially for several spins1.
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