Optimized time-dependent perturbation theory for pulse-driven quantum dynamics in atomic or molecular systems

2003/11/24 by D. Daems, S. Guérin, H. R. Jauslin +2
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Laser-Matter Interactions and Applications #Spectroscopy and Quantum Chemical Studies #quant-ph

paper · pdf · doi:10.1103/physreva.68.051402

published as Phys. Rev. A 68, 051402(R) (2003) · 4 pages, 2 figures

openalex publication_date 2003/11/24 · arxiv created 2003/11/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a time-dependent perturbative approach adapted to the treatment of intense pulsed interactions. We show there is a freedom in choosing secular terms and use it to optimize the accuracy of the approximation. We apply this formulation to a unitary superconvergent technique and improve the accuracy by several orders of magnitude with respect to the Magnus expansion.

Citations

• Unitary time-dependent superconvergent technique for pulse-driven quantum dynamics

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