Multipartite entanglement detection with nonsymmetric probing

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Multipartite entanglement detection with nonsymmetric probing. / Dellantonio, Luca; Das, Sumanta; Appel, Jürgen; Sørensen, Anders S.

I: Physical Review A, Bind 95, Nr. 4, 040301, 10.04.2017.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › fagfællebedømt

Harvard

Dellantonio, L, Das, S, Appel, J & Sørensen, AS 2017, 'Multipartite entanglement detection with nonsymmetric probing', Physical Review A, bind 95, nr. 4, 040301. https://doi.org/10.1103/PhysRevA.95.040301

APA

Dellantonio, L., Das, S., Appel, J., & Sørensen, A. S. (2017). Multipartite entanglement detection with nonsymmetric probing. Physical Review A, 95(4), [040301]. https://doi.org/10.1103/PhysRevA.95.040301

Vancouver

Dellantonio L, Das S, Appel J, Sørensen AS. Multipartite entanglement detection with nonsymmetric probing. Physical Review A. 2017 apr. 10;95(4). 040301. https://doi.org/10.1103/PhysRevA.95.040301

Author

Dellantonio, Luca ; Das, Sumanta ; Appel, Jürgen ; Sørensen, Anders S. / Multipartite entanglement detection with nonsymmetric probing. I: Physical Review A. 2017 ; Bind 95, Nr. 4.

Bibtex

@article{21107c69d98c4be183ec6e5bc8594304,
title = "Multipartite entanglement detection with nonsymmetric probing",
abstract = "We show that spin-squeezing criteria commonly used for entanglement detection can be erroneous if the probe is not symmetric. We then derive a lower bound on squeezing for separable states in spin systems probed asymmetrically. Using this we further develop a procedure that allows us to verify the degree of entanglement of a quantum state in the spin system. Finally, we apply our method for entanglement verification to existing experimental data, and use it to prove the existence of tripartite entanglement in a spin-squeezed atomic ensemble.",
author = "Luca Dellantonio and Sumanta Das and J{\"u}rgen Appel and S{\o}rensen, {Anders S.}",
year = "2017",
month = apr,
day = "10",
doi = "10.1103/PhysRevA.95.040301",
language = "English",
volume = "95",
journal = "Physical Review A - Atomic, Molecular, and Optical Physics",
issn = "1050-2947",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Multipartite entanglement detection with nonsymmetric probing

AU - Dellantonio, Luca

AU - Das, Sumanta

AU - Appel, Jürgen

AU - Sørensen, Anders S.

PY - 2017/4/10

Y1 - 2017/4/10

N2 - We show that spin-squeezing criteria commonly used for entanglement detection can be erroneous if the probe is not symmetric. We then derive a lower bound on squeezing for separable states in spin systems probed asymmetrically. Using this we further develop a procedure that allows us to verify the degree of entanglement of a quantum state in the spin system. Finally, we apply our method for entanglement verification to existing experimental data, and use it to prove the existence of tripartite entanglement in a spin-squeezed atomic ensemble.

AB - We show that spin-squeezing criteria commonly used for entanglement detection can be erroneous if the probe is not symmetric. We then derive a lower bound on squeezing for separable states in spin systems probed asymmetrically. Using this we further develop a procedure that allows us to verify the degree of entanglement of a quantum state in the spin system. Finally, we apply our method for entanglement verification to existing experimental data, and use it to prove the existence of tripartite entanglement in a spin-squeezed atomic ensemble.

U2 - 10.1103/PhysRevA.95.040301

DO - 10.1103/PhysRevA.95.040301

M3 - Journal article

AN - SCOPUS:85017304964

VL - 95

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 4

M1 - 040301

ER -

ID: 176851538