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Formation of the stopped polarization pulse in a rectangular quantum well. / Белов, Павел Алексеевич; Архипов, Ростислав Михайлович.

In: Micro and Nanostructures, Vol. 180, No. 8, 207607, 08.2023.

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Белов, Павел Алексеевич ; Архипов, Ростислав Михайлович. / Formation of the stopped polarization pulse in a rectangular quantum well. In: Micro and Nanostructures. 2023 ; Vol. 180, No. 8.

BibTeX

@article{9afd00ae70d64f5a943000424285a416,
title = "Formation of the stopped polarization pulse in a rectangular quantum well",
abstract = "The induced polarization oscillations in a one-dimensional rectangular quantum well are modeled by a numerical solution of the time-dependent Schr{\"o}dinger equation. The finite-difference discretization over time is realized in the framework of the Crank-Nicolson algorithm, whereas over the spatial coordinate it is combined with the exterior complex-scaling technique. A formation of the harmonic oscillations of the dipole moment by an incident short unipolar pulse is shown. It is obtained that the frequency of oscillations is solely defined by the energy of the main resonant transition. Moreover, if two such short unipolar pulses are delayed by a half-period of the oscillation, then these oscillations can be abruptly induced and stopped. Thus, the so-called stopped polarization pulse is obtained. It is shown that both the amplitude and the duration of the incident unipolar pulse, contributing to the so-called electric pulse area, define the impact of the incident pulse on the quantum system.",
keywords = "Complex scaling, Crank-Nicolson method, Dipole moment, Polarization, Quantum well, Schr{\"o}dinger equation",
author = "Белов, {Павел Алексеевич} and Архипов, {Ростислав Михайлович}",
year = "2023",
month = aug,
doi = "10.1016/j.micrna.2023.207607",
language = "English",
volume = "180",
journal = "Micro and Nanostructures",
issn = "2773-0131",
publisher = "Elsevier",
number = "8",

}

RIS

TY - JOUR

T1 - Formation of the stopped polarization pulse in a rectangular quantum well

AU - Белов, Павел Алексеевич

AU - Архипов, Ростислав Михайлович

PY - 2023/8

Y1 - 2023/8

N2 - The induced polarization oscillations in a one-dimensional rectangular quantum well are modeled by a numerical solution of the time-dependent Schrödinger equation. The finite-difference discretization over time is realized in the framework of the Crank-Nicolson algorithm, whereas over the spatial coordinate it is combined with the exterior complex-scaling technique. A formation of the harmonic oscillations of the dipole moment by an incident short unipolar pulse is shown. It is obtained that the frequency of oscillations is solely defined by the energy of the main resonant transition. Moreover, if two such short unipolar pulses are delayed by a half-period of the oscillation, then these oscillations can be abruptly induced and stopped. Thus, the so-called stopped polarization pulse is obtained. It is shown that both the amplitude and the duration of the incident unipolar pulse, contributing to the so-called electric pulse area, define the impact of the incident pulse on the quantum system.

AB - The induced polarization oscillations in a one-dimensional rectangular quantum well are modeled by a numerical solution of the time-dependent Schrödinger equation. The finite-difference discretization over time is realized in the framework of the Crank-Nicolson algorithm, whereas over the spatial coordinate it is combined with the exterior complex-scaling technique. A formation of the harmonic oscillations of the dipole moment by an incident short unipolar pulse is shown. It is obtained that the frequency of oscillations is solely defined by the energy of the main resonant transition. Moreover, if two such short unipolar pulses are delayed by a half-period of the oscillation, then these oscillations can be abruptly induced and stopped. Thus, the so-called stopped polarization pulse is obtained. It is shown that both the amplitude and the duration of the incident unipolar pulse, contributing to the so-called electric pulse area, define the impact of the incident pulse on the quantum system.

KW - Complex scaling

KW - Crank-Nicolson method

KW - Dipole moment

KW - Polarization

KW - Quantum well

KW - Schrödinger equation

UR - https://www.mendeley.com/catalogue/e1fd0c24-f05d-3749-b703-24bf838f9b65/

U2 - 10.1016/j.micrna.2023.207607

DO - 10.1016/j.micrna.2023.207607

M3 - Article

VL - 180

JO - Micro and Nanostructures

JF - Micro and Nanostructures

SN - 2773-0131

IS - 8

M1 - 207607

ER -

ID: 105167797