Current-independent quantum fluid dynamics of helium atom in strong time-dependent magnetic field

Electronic structure of atoms in a strong time-dependent magnetic field is investigated for the helium atom for field strengths ranging between B = 0–1011 G. Nonrelativistic time-dependent density functional computations are performed through a quantum fluid dynamics based generalized nonlinear Schrödinger equation. The real-time dynamics of helium atom, in the intermediate regime, reveal a distinct transition in the behavior of correlation and exchange energies. At high-field strengths, exchange energy becomes increasingly important with increasing field strength than the correlation energy. The present work, without employing any current-dependent functional, successfully compares characteristic features of strong static magnetic fields.