Microwave spectroscopy reveals the quantum geometric tensor of topological Josephson matter

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dc.contributor.authorKlees, Raffael L.
dc.contributor.authorRastelli, Gianluca
dc.contributor.authorCuevas, Juan Carlos
dc.contributor.authorBelzig, Wolfgang
dc.date.accessioned2020-05-14T09:47:48Z
dc.date.available2020-05-14T09:47:48Z
dc.date.issued2020eng
dc.description.abstractQuantization effects due to topological invariants such as Chern numbers have become very relevant in many systems, yet key quantities such as the quantum geometric tensor providing local information about quantum states remain experimentally difficult to access. Recently, it has been shown that multiterminal Josephson junctions constitute an ideal platform to synthesize topological systems in a controlled manner. We theoretically study properties of Andreev states in topological Josephson matter and demonstrate that the quantum geometric tensor of Andreev states can be extracted by synthetically polarized microwaves. The oscillator strength of the absorption rates provides direct evidence of topological quantum properties of the Andreev states.eng
dc.description.versionpublishedeng
dc.identifier.arxiv1810.11277eng
dc.identifier.doi10.1103/PhysRevLett.124.197002eng
dc.identifier.ppn512571368
dc.identifier.urihttps://kops.uni-konstanz.de/handle/123456789/43654.2
dc.language.isoengeng
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dc.subject.ddc530eng
dc.titleMicrowave spectroscopy reveals the quantum geometric tensor of topological Josephson mattereng
dc.typeJOURNAL_ARTICLEeng
dspace.entity.typePublication
kops.citation.bibtex
@article{Klees2020Micro-43654.2,
  year={2020},
  doi={10.1103/PhysRevLett.124.197002},
  title={Microwave spectroscopy reveals the quantum geometric tensor of topological Josephson matter},
  number={19},
  volume={124},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Klees, Raffael L. and Rastelli, Gianluca and Cuevas, Juan Carlos and Belzig, Wolfgang},
  note={Article Number: 197002}
}
kops.citation.iso690KLEES, Raffael L., Gianluca RASTELLI, Juan Carlos CUEVAS, Wolfgang BELZIG, 2020. Microwave spectroscopy reveals the quantum geometric tensor of topological Josephson matter. In: Physical Review Letters. American Physical Society (APS). 2020, 124(19), 197002. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.124.197002deu
kops.citation.iso690KLEES, Raffael L., Gianluca RASTELLI, Juan Carlos CUEVAS, Wolfgang BELZIG, 2020. Microwave spectroscopy reveals the quantum geometric tensor of topological Josephson matter. In: Physical Review Letters. American Physical Society (APS). 2020, 124(19), 197002. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.124.197002eng
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    <dcterms:abstract xml:lang="eng">Quantization effects due to topological invariants such as Chern numbers have become very relevant in many systems, yet key quantities such as the quantum geometric tensor providing local information about quantum states remain experimentally difficult to access. Recently, it has been shown that multiterminal Josephson junctions constitute an ideal platform to synthesize topological systems in a controlled manner. We theoretically study properties of Andreev states in topological Josephson matter and demonstrate that the quantum geometric tensor of Andreev states can be extracted by synthetically polarized microwaves. The oscillator strength of the absorption rates provides direct evidence of topological quantum properties of the Andreev states.</dcterms:abstract>
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kops.sourcefield.plainPhysical Review Letters. American Physical Society (APS). 2020, 124(19), 197002. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.124.197002deu
kops.sourcefield.plainPhysical Review Letters. American Physical Society (APS). 2020, 124(19), 197002. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.124.197002eng
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source.periodicalTitlePhysical Review Letterseng
source.publisherAmerican Physical Society (APS)eng

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