Журнал Экспериментальной и Теоретической Физики

KOGERENTNOE UPRAVLENIE NASELENNOSTYaMI SVYaZANNYKh SOSTOYaNIY V KVANTOVYKh YaMAKh PAROY POLUPERIODNYKh ATTOSEKUNDNYKh IMPUL'SOV

Rostislav M. Arkhipov, Olga Diachkova, P. Belov, M. V. Arkhipov, A. V. Pakhomov, Nikolai N Rozanov

Published Aug 13, 2024• 3 citations

Abstract

The study of interaction features between unipolar subcycle pulses and matter has shown the necessity of both revising standard theories of light-matter interaction and introducing new concepts in optics, such as pulse area interference. In this work, based on numerical solution of the time-dependent Schrödinger equation, we study the features of nonlinear interference of pulse areas during particle ex- citation in a rectangular potential well driven by a pair of half-cycle attosecond pulses. It is shown that when changing the delay between pulses, the population dependence of bound states on delay exhibits characteristic beating pattern, unlike the simple harmonic dependence obtained in the case of small field amplitude. The conducted research directly demonstrates the possibility of controlling quantum systems using sequences of half-cycle pulses, particularly the possibility of increasing ionization probability or its complete suppression and the possibility of inducing population difference gratings in multilevel media.

DOI: 10.31857/s0044451024080029

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