Feldmann, Polina und Klempt, Carsten und Smerzi, Augusto und Santos, Luis und Gessner, Manuel (2020) Interferometric Order Parameter for Excited-State Quantum Phase Transitions in Bose-Einstein Condensates. Physical Review Letters, 126 (23), Seite 230602. American Physical Society. doi: 10.1103/PhysRevLett.126.230602. ISSN 0031-9007.
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Offizielle URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.126.230602
Kurzfassung
Excited-state quantum phase transitions extend the notion of quantum phase transitions beyond the ground state. They are characterized by closing energy gaps amid the spectrum. Identifying order parameters for excited-state quantum phase transitions poses, however, a major challenge. We introduce a topological order parameter that distinguishes excited-state phases in a large class of mean-field models and can be accessed by interferometry in current experiments with spinor Bose-Einstein condensates. Our work opens a way for the experimental characterization of excited-state quantum phases in atomic many-body systems.
| elib-URL des Eintrags: | https://elib.dlr.de/187341/ | ||||||||||||||||||||||||
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| Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||
| Titel: | Interferometric Order Parameter for Excited-State Quantum Phase Transitions in Bose-Einstein Condensates | ||||||||||||||||||||||||
| Autoren: |
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| Datum: | 4 November 2020 | ||||||||||||||||||||||||
| Erschienen in: | Physical Review Letters | ||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||
| Open Access: | Ja | ||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||
| In ISI Web of Science: | Ja | ||||||||||||||||||||||||
| Band: | 126 | ||||||||||||||||||||||||
| DOI: | 10.1103/PhysRevLett.126.230602 | ||||||||||||||||||||||||
| Seitenbereich: | Seite 230602 | ||||||||||||||||||||||||
| Verlag: | American Physical Society | ||||||||||||||||||||||||
| ISSN: | 0031-9007 | ||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||
| Stichwörter: | Quanten-Phasenübergänge, Ordnungsparameter | ||||||||||||||||||||||||
| HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||
| HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||
| HGF - Programmthema: | Kommunikation, Navigation, Quantentechnologien | ||||||||||||||||||||||||
| DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||
| DLR - Forschungsgebiet: | R KNQ - Kommunikation, Navigation, Quantentechnologie | ||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | R - Quantenmetrologie unter Schwerelosigkeit (QUAMETUS) | ||||||||||||||||||||||||
| Standort: | Hannover | ||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Satellitengeodäsie und Inertialsensorik > Quantengrenzen der Metrologie | ||||||||||||||||||||||||
| Hinterlegt von: | Klempt, Apl. Prof. Carsten | ||||||||||||||||||||||||
| Hinterlegt am: | 11 Jul 2022 08:17 | ||||||||||||||||||||||||
| Letzte Änderung: | 11 Jul 2022 08:17 |
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