Almost sudden perturbation of a quantum system with ultrashort electric pulses

Journal Article · Fri Feb 15 00:00:00 EST 2008 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.77.023420· OSTI ID:21140519

Lugovskoy, Andrey; Bray, Igor ^[1]

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1. Department of Imaging and Applied Physics, Curtin University, Perth 6150 (Australia)

We present an alternative approach to analyze atomic behavior when an external field perturbation is not sudden for a number of states of the field-free system. It is shown that the probability amplitudes for the system to be in these states can be accurately estimated from the closed set of their integral equations. Numerical examples for an electron in a one-dimensional Coulomb potential interacting with (i) laser and (ii) half-cycle pulses are provided. Comparison with exact calculations indicates the strength of the approach.

• OSTI ID: 21140519
• Journal Information: Physical Review. A, Vol. 77, Issue 2; Other Information: DOI: 10.1103/PhysRevA.77.023420; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
COMPARATIVE EVALUATIONS
COULOMB FIELD
DISTURBANCES
ELECTRONS
LASER RADIATION
ONE-DIMENSIONAL CALCULATIONS
PERTURBATION THEORY
PROBABILITY
PULSES
WAVE FUNCTIONS