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Effects of coherence on quantum speed limits and shortcuts to adiabaticity in many-particle systems
https://oist.repo.nii.ac.jp/records/1610
https://oist.repo.nii.ac.jp/records/1610bf12fcd7-d268-4255-84c2-3910167ba64b
名前 / ファイル | ライセンス | アクション |
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Xu-2020-Effects of coherence on quantum speed (1.7 MB)
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Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-07-10 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Effects of coherence on quantum speed limits and shortcuts to adiabaticity in many-particle systems | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Xu, Tian-Niu
× Xu, Tian-Niu× Li, Jing× Busch, Thomas× Chen, Xi× Fogarty, Thomás |
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書誌情報 |
en : Physical Review Research 巻 2, 号 2, p. 023125, 発行日 2020-05-04 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | We discuss the effects of many-body coherence on the speed of evolution of ultracold atomic gases and the relation to quantum speed limits. Our approach is focused on two related systems, spinless fermions and the bosonic Tonks-Girardeau gas, which possess equivalent density dynamics but very different coherence properties. To illustrate the effect of the coherence on the dynamics, we consider squeezing an anharmonic potential which confines the particles and find that the speed of the evolution exhibits subtle but fundamental differences between the two systems. Furthermore, we explore the difference in the driven dynamics by implementing a shortcut to adiabaticity designed to reduce spurious excitations. We show that collisions between the strongly interacting bosons can lead to changes in the coherence which result in different evolution speeds and therefore different fidelities of the final states. | |||||
出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2643-1564 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevResearch.2.023125 | |||||
権利 | ||||||
権利情報 | © 2020 American Physical Society | |||||
情報源 | ||||||
関連名称 | https://creativecommons.org/licenses/by/4.0/ | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.2.023125 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |