Entropy-based view of the strong field ionization process

Abstract

We apply information theoretic entropies of coordinate and velocity distributions in quantum mechanics for the description of the strong field ionization process. The approach is based on the properties of the entropies used in the information theory, viz., their ability to gauge the "distance" between the probability distributions and thus to be sensitive to the distributions variations. Study of the entropies as functions of time allows thus to visualize conveniently evolution of the wave-function of the system undergoing strong field ionization, and to pin down, in particular, the times when the wave-function begins to change appreciably.

References in corpus (5)

• Evolution of the transverse photoelectron momentum distribution for atomic ionization driven by a laser pulse with varying ellipticity
• Comparison of different approaches to the longitudinal momentum spread after tunnel ionization
• Laser-driven recollisions under the Coulomb barrier
• Slalom in complex time: emergence of low-energy structures in tunnel ionization via complex time contours
• Quantum entanglement in strong-field ionization

Cited by in corpus (1)

• Density-based one-dimensional model potentials for strong-field simulations in $\text{He}$, ${\text{H}}_2^{+}$ and ${\text{H}}_2$