paper

Controlling Below-Threshold Nonsequential Double Ionization via Quantum Interference

arXiv:1507.06825 · doi:10.1103/PhysRevLett.116.143001

Abstract

We show through simulation that quantum interference in non-sequential double ionization can be used to control the recollision with subsequent ionization (RESI) mechanism. This includes the shape, localization and symmetry of RESI electron-momentum distributions, which may be shifted from a correlated to an anti-correlated distribution or vice versa, far below the direct ionization threshold intensity. As a testing ground, we reproduce recent experimental results by employing specific coherent superpositions of excitation channels. We examine two types of interference, from electron indistinguishability and intra-cycle events, and from different excitation channels.

5 pages, 4 figures

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