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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2002 Volume 75, Issue 5, Pages 294–1 (Mi jetpl3055)

This article is cited in 9 papers

METHODS OF THEORETICAL PHYSICS

On the Zel'dovich regularization method in the theory of quasistationary states

V. D. Mura, S. G. Pozdnyakova, V. S. Popovb, S. V. Popruzhenkoa

a Moscow Engineering Physics Institute (State University)
b Institute for Theoretical and Experimental Physics (Russian Federation State Scientific Center), Moscow

Abstract: Complex quasienergy and level width are calculated for a weakly bound atomic state in an intense circularly polarized monochromatic laser field using the method suggested by Zel'dovich for the regularization of divergent integrals with the Gamow wave function. It is demonstrated that this method converges, and the conditions for its applicability are indicated. These results are used to discuss the accuracy of the semiclassical approximation in the problems of ionization theory.

PACS: 03.65.Sq, 32.80.Rm

Received: 07.02.2002


 English version:
Journal of Experimental and Theoretical Physics Letters, 2002, 75:5, 249–252

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