Electron and Proton Spin Resonance Induced by Circularly Polarized Radiation: A Classical Derivation
Myron W. Evans
Lawrence B. Crowell
Keywords: Electron and proton spin resonance induced by radiation, B(3) field.
Classical electrodynamics is used to demonstrate electron and proton spin resonance induced by classical, monochromatic, circularly polarized radiation. The effect is present in SU(2) symmetry as indicated by the minimal prescription, whose covering group is O(3). The interaction Hamiltonian is shown to be, H = -aS3sZ ? k, where a is the electron or proton polarizability; S3 is the third Stokes parameter; sZ is the Pauli matrix; and k is a unit vector in Z.
