Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optics and Spectroscopy

On Some New Possibilities for Controlling Quantum Systems Using Unipolar Extremely Short Pulses

Rostislav M. Arkhipov, Mikhail V. Arkhipov, A. V. Pakhomov, Nikolay N. Rosanov

Published Jan 1, 2020• 13 citations
Publisher

Abstract

Based on an approximate solution of the Schrödinger equation, the effect that a pair of extremely short small-amplitude subcycle pulses has on a quantum system is studied. It is shown that, if the pulses are shorter than the inverse frequencies of atomic transitions, the probability of transitions between levels is determined by the electric area of the pulses and the time delay between them. As a consequence, a unipolar pulse can more efficiently affect the system than a bipolar one, while a sequence of pulses realizes a selective action on quantum objects, despite a nonresonant character of the interaction.

DOI
10.1134/s0030400x2001004x

Related papers

Selective ultrafast control of multi-level quantum systems by subcycle and unipolar pulses

Rostislav M. Arkhipov, A. V. Pakhomov, Mikhail V. Arkhipov +4 more

The most typical way to optically control population of atomic and molecular systems is to illuminate them with radiation, resonant to the relevant transitions. Here we consider a possibility to control populations with the subcycle and even unipolar pulses, containing less than one oscillation of electric field. Despite the spectrum of such pulses covers several levels at once, we show that it is possible to selectively excite the levels of our choice by varying the driving pulse shape, duration or time delay between consecutive pulses. The pulses which are not unipolar, but have a peak of electric field of one polarity much higher (and shorter) than of the opposite one, are also capable for such control.

Optics Express•Apr 22, 2020•72 citations

Comparison of the effects of unipolar half-cycle and resonant multi-cycle electromagnetic pulses on quantum systems

Rostislav M. Arkhipov, Mikhail V. Arkhipov, Nikolay N. Rosanov

It is shown that not only multicycle resonant pulses with zero electric area, but also nonresonant unipolar pulses can be used to efficiently excite quantum transitions in a medium. Arguments are presented in favor of the advantages of unipolar pulses for excitation of quantum systems in comparison with resonant radiation. A simple relationship has been found showing that in order to compare the effects of unipolar half-cycle and resonant multicycle pulses on atomic systems. It shows that it is necessary to compare the electric area of ??a unipolar pulse and the area of ??the envelope of a bipolar pulse, rather than their energies. Keywords: unipolar pulses, electric pulse area, pulse area, extremely short pulses, attosecond pulses.

Оптика и спектроскопия•Jan 1, 2022•4 citations

Control of the Properties of Nanostructures Using Few-Cycle Pulses

Rostislav M. Arkhipov, P. Belov, Mikhail V. Arkhipov +2 more

Abstract Based on the numerical solution of the time-dependent Schrödinger equation, we study the interaction of attosecond electromagnetic pulses with a particle in a one-dimensional deep rectangular quantum well. It is shown that when a unipolar pulse affects this system, the change in the level populations occurs more efficiently and faster than under the action of bipolar multicycle pulses with a zero electric area.

Bulletin of the Lebedev Physics Institute•May 31, 2025•0 citations

Unipolar subcycle pulse-driven nonresonant excitation of quantum systems

Rostislav M. Arkhipov, A. V. Pakhomov, Mikhail V. Arkhipov +4 more

The interaction of subcycle pulses with quantum systems is considered when the pulse duration becomes much smaller than the timescales of electron oscillations. We show analytically that the interaction process in this case is governed by the electric pulse area. The efficient nonresonant excitation of quantum systems by subcycle pulses with a high degree of unipolarity is demonstrated. The results are confirmed by direct numerical solution of multilevel Bloch equations.

Optics Letters•Feb 25, 2019•90 citations

Comparison of the Effects of Unipolar Half-Cycle and Resonant Multi-Cycle Electromagnetic Pulses on quantum systems

Rostislav M. Arkhipov, Mikhail V. Arkhipov, Nikolay N. Rosanov

Abstract It is shown that not only multicycle resonant pulses with zero electric area, but also nonresonant unipolar pulses can be used to efficiently excite quantum transitions in a medium. Arguments are presented in favor of the advantages of unipolar pulses for excitation of quantum systems in comparison with resonant radiation. A simple relationship has been found showing that in order to compare the effects of unipolar half-cycle and resonant multicycle pulses on atomic systems. It shows that it is necessary to compare the electric area of a unipolar pulse and the area of the envelope of a bipolar pulse, rather than their energies.

Optics and Spectroscopy•Jan 1, 2023•0 citations

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

Rostislav M. Arkhipov, Olga Diachkova, P. Belov +3 more

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.

Журнал Экспериментальной и Теоретической Физики•Aug 13, 2024•3 citations
Based on an approximate solution of the Schrödinger equation, the effect that a pair of extremely short small-amplitude subcycle pulses has on a quantum system is studied. It is shown that, if the pulses are shorter than the inverse frequencies of atomic transitions, the probability of transitions between levels is determined by the electric area of the pulses and the time delay between them. As a consequence, a unipolar pulse can more efficiently affect the system than a bipolar one, while a sequence of pulses realizes a selective action on quantum objects, despite a nonresonant character of the interaction.
The most typical way to optically control population of atomic and molecular systems is to illuminate them with radiation, resonant to the relevant transitions. Here we consider a possibility to control populations with the subcycle and even unipolar pulses, containing less than one oscillation of electric field. Despite the spectrum of such pulses covers several levels at once, we show that it is possible to selectively excite the levels of our choice by varying the driving pulse shape, duration or time delay between consecutive pulses. The pulses which are not unipolar, but have a peak of electric field of one polarity much higher (and shorter) than of the opposite one, are also capable for such control.
It is shown that not only multicycle resonant pulses with zero electric area, but also nonresonant unipolar pulses can be used to efficiently excite quantum transitions in a medium. Arguments are presented in favor of the advantages of unipolar pulses for excitation of quantum systems in comparison with resonant radiation. A simple relationship has been found showing that in order to compare the effects of unipolar half-cycle and resonant multicycle pulses on atomic systems. It shows that it is necessary to compare the electric area of ??a unipolar pulse and the area of ??the envelope of a bipolar pulse, rather than their energies. Keywords: unipolar pulses, electric pulse area, pulse area, extremely short pulses, attosecond pulses.
Abstract It is shown that not only multicycle resonant pulses with zero electric area, but also nonresonant unipolar pulses can be used to efficiently excite quantum transitions in a medium. Arguments are presented in favor of the advantages of unipolar pulses for excitation of quantum systems in comparison with resonant radiation. A simple relationship has been found showing that in order to compare the effects of unipolar half-cycle and resonant multicycle pulses on atomic systems. It shows that it is necessary to compare the electric area of a unipolar pulse and the area of the envelope of a bipolar pulse, rather than their energies.
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.