Attosecond time-scale multi-electron collisions in the Coulomb four-body problem: traces in classical probability densities

Abstract

In the triple ionization of the Li ground state by single photon absorption the three electrons escape to the continuum mainly through two collision sequences with individual collisions separated by time intervals on the attosecond scale. We investigate the traces of these two collision sequences in the classical probability densities. We show that each collision sequence has characteristic phase space properties which distinguish it from the other. Classical probability densities are the closest analog to quantum mechanical densities allowing our results to be directly compared to quantum mechanical results.

9 pages, 10 figures

References in corpus (4)

• Separation and identification of dominant mechanisms in double photoionization
• The Coulomb four-body problem in a classical framework: Triple photoionization of lithium
• Quasiclassical double photoionization from the 2^{1,3}S excited states of helium including shakeoff
• A quasi classical approach to electron impact ionization

Cited by in corpus (6)

• Intensity dependence of strong field double ionization mechanisms: from field-assisted recollision ionization to recollision-assisted field ionization
• Evidence for a {\bf T}-shape break-up pattern in the triple photoionization of Li
• Electron stripping and re-attachment at atomic centers using attosecond half-cycle pulses
• Energy Sharing in the 2-Electron Attosecond Streak Camera
• Frequency Resolved Optical Gating for Time-Resolving Intra-Atomic Knock-Out in Double Ionization with Attosecond Pulses
• Attosecond electron-electron collision dynamics of the four-electron escape in Be close to threshold