Overview of Relativistic Theory
摘要
In this chapter, the goal is to understand how the Pauli matrices \(\boldsymbol {\sigma}\) , which appear in spin descriptions, couple with the magnetic field \(\mathbf {B}\) through an inner product ( \(H\sim \boldsymbol {\sigma}\cdot \mathbf {B}\) ) (Sect. 6.3.2).