Spin Dynamics — Quantum Description

Martin Berz

Giuseppe Pileio

In this lecture, I introduce a quantum description of an isolated nuclear spin with spin quantum number 1/2. The discussion introduces the Zeeman Hamiltonian, the Larmor frequency and the nuclear spin angular momentum operators, all of which are fundamental concepts in spin dynamics.

P. Bruno

Ilya Kuprov

G. Slaveheva, Ortwin G. Hess

This paper employs a group-theoretical approach for description of the dynamical evolution of an N-level quantum system to derive a set of coupled full-wave vectorial Maxwell-pseudospin equations in two spatial dimensions considering the heavy-hole transition in a quantum well as a resonant nonlinearity. The motivation is to achieve an adequate theoretical description of the ultrafast spin dynamics in a quantum well.