6533b826fe1ef96bd128526c
RESEARCH PRODUCT
Optimized time-dependent perturbation theory for pulse-driven quantum dynamics in atomic or molecular systems
Hans-rudolf JauslinDavid DaemsArne KellerOsman AtabekStéphane Guérinsubject
PhysicsQuantum PhysicsQuantum dynamicsFOS: Physical sciencesSuperconvergenceMolecular systemsUnitary stateAtomic and Molecular Physics and OpticsPulse (physics)Orders of magnitude (time)Quantum electrodynamicsMagnus expansionPerturbation theory (quantum mechanics)Statistical physicsQuantum Physics (quant-ph)description
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-11-25 |