Benchmarking the generalized Kadanoff-Baym ansatz and second-order adiabatic expansion using time-dependent spintronic effects: Spin pumping, torque, and inertia

Jalil Varela-Manjarres, Nicole Sofia Salazar-Delgado, Branislav K. Nikolic

The generalized Kadanoff-Baym ansatz (GKBA) [P. Lipavský {\em et al.}, Phys. Rev. B {\bf 34}, 6933 (1986)] has emerged as a popular and numerically efficient algorithm for simplifi…