General class of continuous variable entanglement criteria

We present a general class of entanglement criteria for continuous variable systems. Our criteria are based on the Husimi Q distribution and allow for optimization over the set of all concave functions rendering them extremely general and versatile. We show that several entropic criteria and second...

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Hauptverfasser: Gärttner, Martin (VerfasserIn) , Haas, Tobias (VerfasserIn) , Noll, Johannes (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 13 October 2023
In: Physical review letters
Year: 2023, Jahrgang: 131, Heft: 15, Pages: 1-7
ISSN:1079-7114
DOI:10.1103/PhysRevLett.131.150201
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.131.150201
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.131.150201
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Verfasserangaben:Martin Gärttner, Tobias Haas, and Johannes Noll
Beschreibung
Zusammenfassung:We present a general class of entanglement criteria for continuous variable systems. Our criteria are based on the Husimi Q distribution and allow for optimization over the set of all concave functions rendering them extremely general and versatile. We show that several entropic criteria and second moment criteria are obtained as special cases. Our criteria reveal entanglement of families of states undetected by any commonly used criteria and provide clear advantages under typical experimental constraints such as finite detector resolution and measurement statistics.
Beschreibung:Gesehen am 15.01.2024
Beschreibung:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.131.150201