Collective spin oscillations in spin polarized gases: Spin polarized hydrogen.
01 January 1984
The spin dynamics of weakly interacting, spin-polarized quantum gases are discussed in terms of a quasi-particle picture of these systems. Quantum mechanical exchange between identical particles introduces "molecular" magnetic fields which give rise to the precession of the spin current; this in turn leads to coherent oscillations of the magnetization. The theory is used to discuss magnetic resonance experiments in spin polarized atomic hydrogen.