Momentum transfers in correlation-assisted tunnelling

Abstract

We consider correlation-assisted tunnel ionization of a small molecule by an intense low-frequency laser pulse. In this mechanism, the departing electron excites the state of the ion via a Coulomb interaction. We show that the angular distribution for this process has significant qualitative differences compared to direct tunnelling of an electron from a deeper orbital. These differences could be used to distinguish the two contributions, and give rise to interference effects when the contributions are comparable. The saddle-point approximation is also shown to require special attention in this geometric analysis.

6 pages, 4 figures

References in corpus (2)

• One-Electron Ionization of Multielectron Systems in Strong Nonresonant Laser Fields
• Strong field ionization to multiple electronic states in water

Cited by in corpus (3)

• Channel-specific core-valence projectors for determining partial Auger decay widths
• Electron correlations and pre-collision in the re-collision picture of high harmonic generation
• Quantum tunnelling without a barrier