Simulation and visualization of attosecond stimulated x-ray Raman spectroscopy signals in trans-N-methylacetamide at the nitrogen and oxygen K-edges
Journal Article
·
· Journal of Chemical Physics
- Department of Chemistry, University of California, Irvine, California 92697-2025 (United States)
The stimulated Raman component of the pump-probe spectrum of trans-N-methylacetamide obtained in response to two soft x-ray pulses is calculated by treating the core excitations at the Hartree-Fock static-exchange level. The signal reveals the dynamics of valence-electron wave packets prepared and detected in the vicinity of a selected atom (either nitrogen or oxygen). The evolving electronic charge density as well as electronic coherence of the doorway and the window created by the two pulses are visualized using a time-dependent basis set of natural orbitals, which reveals that the wave packets consist of several entangled valence particle-hole pairs.
- OSTI ID:
- 21560061
- Journal Information:
- Journal of Chemical Physics, Vol. 134, Issue 12; Other Information: DOI: 10.1063/1.3557057; (c) 2011 American Institute of Physics; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
74 ATOMIC AND MOLECULAR PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHARGE DENSITY
ELECTRONS
EXCITATION
HARTREE-FOCK METHOD
NITROGEN
ORGANIC COMPOUNDS
OXYGEN
PARTICLES
PULSES
RAMAN EFFECT
RAMAN SPECTROSCOPY
SIGNALS
SIMULATION
SOFT X RADIATION
TIME DEPENDENCE
WAVE PACKETS
X-RAY SPECTRA
APPROXIMATIONS
CALCULATION METHODS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FERMIONS
IONIZING RADIATIONS
LASER SPECTROSCOPY
LEPTONS
NONMETALS
RADIATIONS
SPECTRA
SPECTROSCOPY
X RADIATION
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHARGE DENSITY
ELECTRONS
EXCITATION
HARTREE-FOCK METHOD
NITROGEN
ORGANIC COMPOUNDS
OXYGEN
PARTICLES
PULSES
RAMAN EFFECT
RAMAN SPECTROSCOPY
SIGNALS
SIMULATION
SOFT X RADIATION
TIME DEPENDENCE
WAVE PACKETS
X-RAY SPECTRA
APPROXIMATIONS
CALCULATION METHODS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
ENERGY-LEVEL TRANSITIONS
FERMIONS
IONIZING RADIATIONS
LASER SPECTROSCOPY
LEPTONS
NONMETALS
RADIATIONS
SPECTRA
SPECTROSCOPY
X RADIATION