Quantum Control by Few-Cycles Pulses: The Two-Level Problem
We investigate the problem of population transfer in a two-states system driven by an external electromagnetic field featuring a few cycles, until the extreme limit of two or one cycle. Taking the physical constraint of zero-area total field into account, we determine strategies leading to ultrahigh...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9955166/ https://www.ncbi.nlm.nih.gov/pubmed/36832579 http://dx.doi.org/10.3390/e25020212 |
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author | Peyraut, François Holweck, Frédéric Guérin, Stéphane |
author_facet | Peyraut, François Holweck, Frédéric Guérin, Stéphane |
author_sort | Peyraut, François |
collection | PubMed |
description | We investigate the problem of population transfer in a two-states system driven by an external electromagnetic field featuring a few cycles, until the extreme limit of two or one cycle. Taking the physical constraint of zero-area total field into account, we determine strategies leading to ultrahigh-fidelity population transfer despite the failure of the rotating wave approximation. We specifically implement adiabatic passage based on adiabatic Floquet theory for a number of cycles as low as 2.5 cycles, finding and making the dynamics follow an adiabatic trajectory connecting the initial and targeted states. Nonadiabatic strategies with shaped or chirped pulses, extending the [Formula: see text]-pulse regime to two- or single-cycle pulses, are also derived. |
format | Online Article Text |
id | pubmed-9955166 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-99551662023-02-25 Quantum Control by Few-Cycles Pulses: The Two-Level Problem Peyraut, François Holweck, Frédéric Guérin, Stéphane Entropy (Basel) Article We investigate the problem of population transfer in a two-states system driven by an external electromagnetic field featuring a few cycles, until the extreme limit of two or one cycle. Taking the physical constraint of zero-area total field into account, we determine strategies leading to ultrahigh-fidelity population transfer despite the failure of the rotating wave approximation. We specifically implement adiabatic passage based on adiabatic Floquet theory for a number of cycles as low as 2.5 cycles, finding and making the dynamics follow an adiabatic trajectory connecting the initial and targeted states. Nonadiabatic strategies with shaped or chirped pulses, extending the [Formula: see text]-pulse regime to two- or single-cycle pulses, are also derived. MDPI 2023-01-22 /pmc/articles/PMC9955166/ /pubmed/36832579 http://dx.doi.org/10.3390/e25020212 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Peyraut, François Holweck, Frédéric Guérin, Stéphane Quantum Control by Few-Cycles Pulses: The Two-Level Problem |
title | Quantum Control by Few-Cycles Pulses: The Two-Level Problem |
title_full | Quantum Control by Few-Cycles Pulses: The Two-Level Problem |
title_fullStr | Quantum Control by Few-Cycles Pulses: The Two-Level Problem |
title_full_unstemmed | Quantum Control by Few-Cycles Pulses: The Two-Level Problem |
title_short | Quantum Control by Few-Cycles Pulses: The Two-Level Problem |
title_sort | quantum control by few-cycles pulses: the two-level problem |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9955166/ https://www.ncbi.nlm.nih.gov/pubmed/36832579 http://dx.doi.org/10.3390/e25020212 |
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