caa a22 4500 44586804X CHVBK 20180317145503.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1140/epjd/e2010-10390-9 doi (NATIONALLICENCE)springer-10.1140/epjd/e2010-10390-9 Vikas, Quantum Chemistry Group, Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, 160014, Chandigrah, India aut Quantum fluid dynamics based current-density functional study of a helium atom in a strong time-dependent magnetic field [Elektronische Daten] [Vikas,] Abstract.: Evolution of the helium atom in a strong time-dependent (TD) magnetic field (B) of strength up to 1011G is investigated through a quantum fluid dynamics (QFD) based current-density functional theory (CDFT). The TD-QFD-CDFT computations are performed through numerical solution of a single generalized nonlinear Schrödinger equation employing vector exchange-correlation potentials and scalar exchange-correlation density functionals that depend both on the electronic charge-density and the current-density. The results are compared with that obtained from a B-TD-QFD-DFT approach (based on conventional TD-DFT) under similar numerical constraints but employing only scalar exchange-correlation potential dependent on electronic charge-density only. The B-TD-QFD-DFT approach, at a particular TD magnetic field-strength, yields electronic charge- and current-densities as well as exchange-correlation potential resembling with that obtained from the time-independent studies involving static (time-independent) magnetic fields. However, TD-QFD-CDFT electronic charge- and current-densities along with the exchange-correlation potential and energy differ significantly from that obtained using B-TD-QFD-DFT approach, particularly at field-strengths >109G, representing dynamical effects of a TD field. The work concludes that when a helium atom is subjected to a strong TD magnetic field of order >109G, the conventional TD-DFT based approach differs "dynamically” from the CDFT based approach under similar computational constraints. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 The European Physical Journal D Springer-Verlag 61/3(2011-02-01), 551-561 1434-6060 61:3<551 2011 61 10053 https://doi.org/10.1140/epjd/e2010-10390-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2010-10390-9 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Vikas Quantum Chemistry Group, Department of Chemistry and Centre of Advanced Studies in Chemistry, Panjab University, 160014, Chandigrah, India aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 61/3(2011-02-01), 551-561 1434-6060 61:3<551 2011 61 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer