2004/05/26 by Jeongwon Ho, B. C. Choi, Ho, Jeongwon +5
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #Other Condensed Matter (cond-mat.other) #Quantum chaos and dynamical systems #Theoretical and Computational Physics #cond-mat.other
paper · pdf · doi:10.48550/arxiv.cond-mat/0405599
RevTex 3 Pages in double column; no figure
arxiv created 2004/05/26 · openalex publication_date 2004/05/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Using the invariant operator method for an effective Hamiltonian including the radiation-spin interaction, we describe the quantum theory for magnetization dynamics when the spin system evolves nonadiabatically and out of equilibrium, d ρ/dt ≠ 0. It is shown that the vector parameter of the invariant operator and the magnetization defined with respect to the density operator, both satisfying the quantum Liouville equation, still obey the Landau-Lifshitz-Gilbert equation.