Attosecond pumping of nonstationary electronic states of LiH: Charge shake-up and electron density distortion

Journal Article · Sat Jan 15 00:00:00 EST 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.013411· OSTI ID:21529101

Remacle, F ^[1]; Levine, R D ^[2]

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1. Department of Chemistry, University of Liege, B-4000 Liege (Belgium)
2. Fritz Haber Center for Molecular Dynamics, Hebrew University of Jerusalem, Jerusalem IL-91904 (Israel)

Electronic reorganization during and after excitation by an intense ultrashort pulse is computed for LiH in a many-electron multireference time-dependent approach at a fixed nuclear geometry. The electronic dipole moment is used to probe the temporal response of the charge density. Above a field-strength threshold, there is an extensive Stark shifting and Rabi broadening of levels with corresponding distortion of the charge distribution whose response at strong fields is neither adiabatic nor diabatic. A nonresonant IR pulse is more effective in inducing charge shake-up during the pulse.

• OSTI ID: 21529101
• Journal Information: Physical Review. A, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevA.83.013411; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CHARGE DENSITY
CHARGE DISTRIBUTION
DIPOLE MOMENTS
ELECTRON DENSITY
ELECTRONS
EXCITATION
INFRARED RADIATION
LITHIUM HYDRIDES
PULSES
PUMPING
SPECTRAL SHIFT
STARK EFFECT
TIME DEPENDENCE
ALKALI METAL COMPOUNDS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
FERMIONS
HYDRIDES
HYDROGEN COMPOUNDS
LEPTONS
LITHIUM COMPOUNDS
RADIATIONS