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Entanglement Quantification in Atomic Ensembles
https://oist.repo.nii.ac.jp/records/2190
https://oist.repo.nii.ac.jp/records/2190348b09b8-8420-4cc2-b439-8b737b95cf96
名前 / ファイル | ライセンス | アクション |
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Fadel-2021-Entanglement Quantification in Atom (510.9 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-08-16 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Entanglement Quantification in Atomic Ensembles | |||||
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) |
Fadel, Matteo
× Fadel, Matteo× Usui, Ayaka× Huber, Marcus× Friis, Nicolai× Vitagliano, Giuseppe |
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書誌情報 |
en : Physical Review Letters 巻 127, 号 1, p. 010401, 発行日 2021-06-29 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Entanglement measures quantify nonclassical correlations present in a quantum system, but can be extremely difficult to calculate, even more so, when information on its state is limited. Here, we consider broad families of entanglement criteria that are based on variances of arbitrary operators and analytically derive the lower bounds these criteria provide for two relevant entanglement measures: the best separable approximation and the generalized robustness. This yields a practical method for quantifying entanglement in realistic experimental situations, in particular, when only few measurements of simple observables are available. As a concrete application of this method, we quantify bipartite and multipartite entanglement in spin-squeezed Bose-Einstein condensates of ∼500 atoms, by lower bounding the best separable approximation and the generalized robustness only from measurements of first and second moments of the collective spin operator. | |||||
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 | 0031-9007 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1079-7114 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | info:pmid/34270307 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevLett.127.010401 | |||||
権利 | ||||||
権利情報 | © 2021 American Physical Society | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.127.010401 | |||||
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 |