Laser-induced electron diffraction in H{sub 2} with linear and circular polarization ultrashort XUV laser pulses

Journal Article · Tue Dec 15 04:00:00 EST 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.061403· OSTI ID:21352282

Kaijun, Yuan; Huizhong, Lu; Bandrauk, Andre D ^[1]

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1. Laboratoire de Chimie Theorique, Faculte des Sciences, Universite de Sherbrooke, Sherbrooke, Quebec, J1K 2R1 (Canada)

Numerical solution of the time-dependent Schroedinger equation for a two-dimension model of H{sub 2} ionization by intense ultrashort (few cycles) extreme ultraviolet (XUV) laser pulses are presented to compare linear and circular polarization angular distributions for aligned molecules. Both ground (X {sup 1}SIGMA{sub g}{sup +}) and excited (A {sup 3}SIGMA{sub u}{sup +}) states ionization is calculated at equilibrium and for extended large internuclear distance configurations to study the effect of electron delocalization via molecular orbitals vs electron localization in Heitler-London atomic wave functions. It is found that at large distance for ionized electron wavelengths less than the internuclear distance, circular polarization ionization angular distributions exhibit signature of the entanglement of electrons by exchange, thus, allowing for a measure of exchange entanglement.

• OSTI ID: 21352282
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 80; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANGULAR DISTRIBUTION
COHERENT SCATTERING
COLLISIONS
DIFFERENTIAL EQUATIONS
DIFFRACTION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON DIFFRACTION
ELEMENTS
ENERGY LEVELS
EQUATIONS
EXCITED STATES
EXTREME ULTRAVIOLET RADIATION
FUNCTIONS
GROUND STATES
HYDROGEN
IONIZATION
LASERS
MATHEMATICAL SOLUTIONS
MATHEMATICS
MOLECULE COLLISIONS
MOLECULES
NONMETALS
NUMERICAL ANALYSIS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
PHOTOIONIZATION
PHOTON COLLISIONS
PHOTON-MOLECULE COLLISIONS
POLARIZATION
PULSES
QUANTUM ENTANGLEMENT
RADIATIONS
SCATTERING
SCHROEDINGER EQUATION
TIME DEPENDENCE
ULTRAVIOLET RADIATION
WAVE EQUATIONS
WAVE FUNCTIONS