Hidden quantum correlations in the ground states of quasiclassical spin systems

Kurzanzeige
dc.contributor.authorRózsa, Levente
dc.contributor.authorWuhrer, Dennis
dc.contributor.authorDiaz, Sebastian A.
dc.contributor.authorNowak, Ulrich
dc.contributor.authorBelzig, Wolfgang
dc.date.accessioned2025-06-02T08:06:06Z
dc.date.available2025-06-02T08:06:06Z
dc.date.issued2025-05-27
dc.description.abstractFrustrated spin models may lead to the formation of both classical noncollinear spin structures and unique quantum phases including highly entangled quantum spin liquids. Here, we study the entanglement and spatial quantum correlations in linear spin-wave theory around a classical spin spiral ground state. We find that the entanglement between pairs of sites is short-ranged, and is completely absent in certain cases. In contrast, the entanglement hidden in multisite clusters is peaked close to phase transitions and shows an asymptotic behavior modulated by the period of the magnetic structure. These findings motivate further exploring the connection in the entanglement properties of fully quantum and of quasiclassical spin models.
dc.description.versionpublisheddeu
dc.identifier.arxiv2411.08394
dc.identifier.doi10.1103/physrevb.111.174441
dc.identifier.ppn1927449111
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/73485
dc.language.isoeng
dc.rightsterms-of-use
dc.rights.urihttps://rightsstatements.org/page/InC/1.0/
dc.subjectFrustrated magnetism
dc.subjectMagnons
dc.subjectQuantum entanglement
dc.subjectTriangular lattice
dc.subjectLinear spin wave theory
dc.subject.ddc530
dc.titleHidden quantum correlations in the ground states of quasiclassical spin systemseng
dc.typeJOURNAL_ARTICLE
dspace.entity.typePublication
kops.citation.bibtex
@article{Rozsa2025-05-27Hidde-73485,
  title={Hidden quantum correlations in the ground states of quasiclassical spin systems},
  year={2025},
  doi={10.1103/physrevb.111.174441},
  number={17},
  volume={111},
  issn={2469-9950},
  journal={Physical Review B},
  author={Rózsa, Levente and Wuhrer, Dennis and Diaz, Sebastian A. and Nowak, Ulrich and Belzig, Wolfgang},
  note={Zusätzliche Förderung: Innovation Office (NRDI) of Hungary under Projects No. K131938 and No. FK142601, by the Ministry of Culture and Innovation and the National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary (Grant No. 2022-2.1.1-NL-2022-00004), and by the Hungarian Academy of Sciences via a János Bolyai Research Grant (Grant No. BO/00178/23/11). Article Number: 174441}
}
kops.citation.iso690RÓZSA, Levente, Dennis WUHRER, Sebastian A. DIAZ, Ulrich NOWAK, Wolfgang BELZIG, 2025. Hidden quantum correlations in the ground states of quasiclassical spin systems. In: Physical Review B. American Physical Society (APS). 2025, 111(17), 174441. ISSN 2469-9950. eISSN 2469-9969. Verfügbar unter: doi: 10.1103/physrevb.111.174441deu
kops.citation.iso690RÓZSA, Levente, Dennis WUHRER, Sebastian A. DIAZ, Ulrich NOWAK, Wolfgang BELZIG, 2025. Hidden quantum correlations in the ground states of quasiclassical spin systems. In: Physical Review B. American Physical Society (APS). 2025, 111(17), 174441. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/physrevb.111.174441eng
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kops.description.commentZusätzliche Förderung: Innovation Office (NRDI) of Hungary under Projects No. K131938 and No. FK142601, by the Ministry of Culture and Innovation and the National Research, Development and Innovation Office within the Quantum Information National Laboratory of Hungary (Grant No. 2022-2.1.1-NL-2022-00004), and by the Hungarian Academy of Sciences via a János Bolyai Research Grant (Grant No. BO/00178/23/11).
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kops.sourcefield.plainPhysical Review B. American Physical Society (APS). 2025, 111(17), 174441. ISSN 2469-9950. eISSN 2469-9969. Available under: doi: 10.1103/physrevb.111.174441eng
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