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Fast and robust quantum control based on Pauli blocking
https://oist.repo.nii.ac.jp/records/353
https://oist.repo.nii.ac.jp/records/35380cb3e82-1095-4c2d-b458-20f3d5d30e76
名前 / ファイル | ライセンス | アクション |
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PhysRevA.96.043601 (393.3 kB)
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Creative Commons Attribution 4.0 International
(http://creativecommons.org/licenses/by/4.0/) |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-04-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Fast and robust quantum control based on Pauli blocking | |||||
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) |
Dowdall, Tom
× Dowdall, Tom× Benseny, Albert× Busch, Thomas× Ruschhaupt, Andreas |
|||||
書誌情報 |
en : Physical Review A 巻 96, 号 4, p. 043601, 発行日 2017-10-03 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Coherent quantum control over many-particle quantum systems requires high-fidelity dynamics. One way of achieving this is to use adiabatic schemes where the system follows an instantaneous eigenstate of the Hamiltonian over time scales that do not allow transitions to other states. This, however, makes control dynamics very slow. Here we introduce another concept that takes advantage of preventing unwanted transitions in fermionic systems by using Pauli blocking: excitations from a protected ground state to higher-lying states are avoided by adding a layer of buffer fermions, such that the protected fermions cannot make a transition to higher-lying excited states because these are already occupied. This allows us to speed up adiabatic evolutions of the system. We do a thorough investigation of the technique, and demonstrate its power by applying it to high-fidelity transport, trap expansion, and splitting in ultracold-atom systems in anharmonic traps. Close analysis of these processes also leads to insights into the structure of the orthogonality catastrophe phenomenon. | |||||
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 | 2469-9926 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2469-9934 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevA.96.043601 | |||||
権利 | ||||||
権利情報 | ©2017 American Physical Society | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/pra/abstract/10.1103/PhysRevA.96.043601 | |||||
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 |