Status: Bibliographieeintrag
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| Verfasst von: | Tsatsos, Marios [VerfasserIn]  |
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| | Streltsov, Alexej Iwanowitsch [VerfasserIn] |
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| | Alon, Ofir E. [VerfasserIn] |
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| | Cederbaum, Lorenz S. [VerfasserIn] |
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| Titel: | Fragmented many-body states of definite angular momentum and stability of attractive three-dimensional condensates |
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| Verf.angabe: | Marios C. Tsatsos, Alexej I. Streltsov, Ofir E. Alon, and Lorenz S. Cederbaum |
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| E-Jahr: | 2010 |
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| Jahr: | 20 September 2010 |
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| Umfang: | 17 S. |
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| Fussnoten: | Gesehen am 19.01.2024 |
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| Titel Quelle: | Enthalten in: Physical review / A |
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| Ort Quelle: | College Park, Md., 1970 |
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| Jahr Quelle: | 2010 |
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| Band/Heft Quelle: | 82(2010), 3, Artikel-ID 033613, Seite 1-17 |
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| ISSN Quelle: | 1094-1622 |
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| Abstract: | A three-dimensional attractive Bose-Einstein condensate is expected to collapse when the number of the particles N in the ground state or the interaction strength λ0 exceeds a critical value. We study systems of different particle numbers and interaction strength and find that even if the overall ground state is collapsed there is a plethora of fragmented excited states that are still in the metastable region. Utilizing the configuration interaction expansion we determine the spectrum of the ground (“yrast”) and excited many-body states with definite total angular-momentum quantum numbers 0⩽L⩽N and −L⩽ML⩽L, and we find and examine states that survive the collapse. This opens up the possibility of realizing a metastable system with overcritical numbers of bosons in a ground state with angular momentum L≠0. The multiorbital mean-field theory predictions about the existence of fragmented metastable states with overcritical numbers of bosons are verified and elucidated at the many-body level. The descriptions of the total angular momentum within the mean-field and the many-body approaches are compared. |
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| DOI: | doi:10.1103/PhysRevA.82.033613 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1103/PhysRevA.82.033613 |
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| | Volltext: https://link.aps.org/doi/10.1103/PhysRevA.82.033613 |
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| | DOI: https://doi.org/10.1103/PhysRevA.82.033613 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1878515144 |
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| Verknüpfungen: | → Zeitschrift |
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Fragmented many-body states of definite angular momentum and stability of attractive three-dimensional condensates / Tsatsos, Marios [VerfasserIn]; 20 September 2010 (Online-Ressource)
69163317
