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Conference: Bucharest University Faculty of Physics 2001 Meeting

Section: Theoretical Physics and Applied Mathematics

Title:

RESONANCES AND ANTI-BOUND STATES FOT THE DRESSED ONE-DIMENSIONAL DELTA-FUNCTION POTENTIAL

Authors:

Madalina Boca (1),Ciprian Chirila(1),Marius Stroe(2) and Viorica Florescu(1)

Affiliation:

1)Department of Physics, University of Bucharest, Bucharest-Magurele,R-76900 Romania

(2)Department of Chemistry, University of Bucharest, Bucharest-Magurele,R-76900 Romania

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Keywords:

Abstract:

In the high-frequency limit of the Floquet theory the atomic system is governed by a time independent potential called dressed potential,which depends on the laser field only through the parameter - alfa0 the free electron quiver amplitude in the monocromatic electromagnetic field . The dressed potential differ apreciable from the atomic potential in the absence of field for large value of this parameter.The dressed potential has bound,antibound and resonances states wich may influence the time-evolution of the system. The purpose of our paper is the search for new light induced levels, antibound states and resonances for the dressed potential attached to the one-dimensional attractive delta-function potential .We present the results of our calculations of several new ligth induced levels,antibound states and resonances as function of alfa0, and we describe also our method, adequate to solve numerical the Schrodinger equation of this particular potential.