Theoretical Demonstration of the Feasibility of Observing Vortices in the Ejected Electron Spectrum in Bare-Ion Two-Electron-Atom Collisions

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.83.060701· OSTI ID:1032799

Ovchinnikov, S. Yu. ^[1]; Macek, Joseph H ^[2]; Schultz, David Robert ^[2]

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1. University of Tennessee, Knoxville (UTK)
2. ORNL

Using a fully correlated, 4-dimensional lattice, time-dependent Schr dinger equation (LTDSE) model of the collisions of bare projectile ions with two-electron atoms (H+, He2+ + He), we demonstrate the existence vortices in the resulting spectrum of ejected electrons. Following the uncovering of these features in collisions involving only one electron (H+ + H) [Macek et al., Phys. Rev. Lett. 102, 143201 (2009)], this demonstration provides impetus for seeking these features in more readily feasible experimental conditions using a cold helium target and the reaction microscope technique.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1032799
• Journal Information: Physical Review A, Vol. 83, Issue 6; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
ELECTRONS
HELIUM
MICROSCOPES
PROJECTILES
TARGETS
VORTICES