Pulse-driven quantum dynamics beyond the impulsive regime

Abstract

We review various unitary time-dependent perturbation theories and compare them formally and numerically. We show that the Kolmogorov-Arnold-Moser technique performs better owing to both the superexponential character of correction terms and the possibility to optimize the accuracy of a given level of approximation which is explored in details here. As an illustration, we consider a two-level system driven by short pulses beyond the sudden limit.

15 pages, 5 color figures

References in corpus (4)

• Strong Coupling Theory of Two Level Atoms in Periodic Fields
• Quantum Averaging I: Poincaré--von Zeipel is Rayleigh--Schrödinger
• Unitary time-dependent superconvergent technique for pulse-driven quantum dynamics
• Optimized time-dependent perturbation theory for pulse-driven quantum dynamics in atomic or molecular systems

Cited by in corpus (5)

• Field-free two-direction alignment alternation of linear molecules by elliptic laser pulses
• Charge and spin dynamics driven by ultrashort extreme broadband pulses: a theory perspective
• Time-dependent unitary perturbation theory for intense laser driven molecular orientation
• Revivals, collapses and magnetic-pulse generation in quantum rings
• Photo-induced spin filtering in a double quantum dot