<div class="csl-bib-body">
<div class="csl-entry">Baksova, K., Leskovjanová, O., Mišta, L., Agudelo Ospina, E., & Friis, N. (2023). <i>Multi-copy activation of genuine multipartite entanglement in continuous-variable systems</i>. arXiv. https://doi.org/10.48550/arXiv.2312.16570</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/191032
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dc.description.abstract
Activation of genuine multipartite entanglement (GME) is a phenomenon whereby multiple copies of biseparable but fully inseparable states can be GME. This was shown to be generically possible in finite dimensions. Here, we extend this analysis to infinite dimensions. We provide examples of GME-activatable non-Gaussian states. For Gaussian states we employ a necessary biseparability criterion for the covariance matrix (CM) and show that it cannot detect GME activation. We further identify fully inseparable Gaussian states that satisfy the criterion but show that multiple and, in some cases, even single copies are GME. Thus, we show that the CM biseparability criterion is not sufficient even for Gaussian states.
en
dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.subject
entanglement
en
dc.subject
Genuine multipartite entanglement
en
dc.subject
continuous variables
en
dc.title
Multi-copy activation of genuine multipartite entanglement in continuous-variable systems
en
dc.type
Preprint
en
dc.type
Preprint
de
dc.identifier.arxiv
2312.16570
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dc.contributor.affiliation
Palacky University, Czech Republic
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dc.contributor.affiliation
Palacky University, Czech Republic
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dc.relation.grantno
P 36478
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dc.relation.grantno
M 3151
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tuw.project.title
Verschränkungsbasierte Zertifizierung von Quantentechnologie
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tuw.project.title
Ausbeutung unendlicher Dimensionen für Quanteninformation
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tuw.researchinfrastructure
Universitäre Service-Einrichtung für Transmissionselektronenmikroskopie
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tuw.researchTopic.id
Q6
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tuw.researchTopic.id
Q1
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tuw.researchTopic.id
Q5
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tuw.researchTopic.name
Quantum Many-body Systems Physics
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tuw.researchTopic.name
Photonics
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tuw.researchTopic.name
Design and Engineering of Quantum Systems
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tuw.researchTopic.value
30
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tuw.researchTopic.value
30
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tuw.researchTopic.value
40
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tuw.publication.orgunit
E141-08 - Forschungsbereich Quantum Optics and Quantum Information