Probing Electron Correlation via Attosecond xuv Pulses in the Two-Photon Double Ionization of Helium

Journal Article · Fri Aug 07 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.063002· OSTI ID:21370635

Feist, J; Nagele, S; Pazourek, R; Persson, E; Burgdoerfer, J ^[1]; Schneider, B I ^[2]; Collins, L A ^[3]

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1. Institute for Theoretical Physics, Vienna University of Technology, 1040 Vienna, Austria, EU (Austria)
2. Physics Division, National Science Foundation, Arlington, Virginia 22230 (United States)
3. Theoretical Division, T-4, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

Recent experimental developments of high-intensity, short-pulse extreme ultraviolet light sources are enhancing our ability to study electron-electron correlations. We perform time-dependent calculations to investigate the so-called 'sequential' regime ((Planck constant/2pi)omega>54.4 eV) in the two-photon double ionization of helium. We show that attosecond pulses allow us not only to probe but also to induce angular and energy correlations of the emitted electrons. The final momentum distribution reveals regions dominated by the Wannier ridge breakup scenario and by postcollision interaction.

• OSTI ID: 21370635
• Journal Information: Physical Review Letters, Vol. 103, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.103.063002; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRON CORRELATION
ELECTRONS
EXTREME ULTRAVIOLET RADIATION
HELIUM
IONIZATION
LIGHT SOURCES
PHOTONS
PULSES
TIME DEPENDENCE
BOSONS
CORRELATIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
GASES
LEPTONS
MASSLESS PARTICLES
NONMETALS
RADIATION SOURCES
RADIATIONS
RARE GASES
ULTRAVIOLET RADIATION