Influence of excitation pulse length on a correlated two-electron wave packet

M A Lysaght (1) , H W van Der Hart (1)

1 Centre for Theoretical Atomic, Molecular and Optical Physics

We employ the time-dependent R-matrix approach to investigate how ultrafast dynamics in the excited 2s2p 2 configuration of C + is affected by the length of the excitation pulse. The excitation pulse is tuned closer to the 2 D state than to the 2 S state. We demonstrate that by varying the excitation pulse length, we can choose an excitation of the 2s2p 2 configuration which is dominated by the 2 D state or an excitation which is dominated by a breathing motion between the uncoupled | 2p 0 2p 0 ? state and the singlet | 2p −1 2p 1 ? states.

Mots clés: 31.14.A-; 32.80.Qk; 32.80.Rm

M A Lysaght, H W van Der Hart. Influence of excitation pulse length on a correlated two-electron wave packet. Journal of Physics B: Atomic, Molecular and Optical Physics, 2010, 43 (12), pp.121001. ⟨10.1088/0953-4075/43/12/121001⟩. ⟨hal-00630003⟩