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Entanglement Theory Quantum Correlations

Genuine Tripartite Entanglement in a Spin-Star Network at Thermal Equilibrium

arXiv

Authors: B. Militello, A. Messina

Year

2010

Paper ID

10944

Status

Preprint

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~2 min

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Abstract

In a recent paper \[M. Huber {\it et al}, Phys. Rev. Lett. {\bf 104}, 210501 (2010)\] new criteria to find out the presence of multipartite entanglement have been given. We exploit these tools in order to study thermal entanglement in a spin-star network made of three peripheral spins interacting with a central one. Genuine tripartite entanglement is found in a wide range of the relevant parameters. A comparison between predictions based on the new criteria and on the tripartite negativity is also given.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1010.1684 [2] arXiv https://arxiv.org/abs/1010.1684 [3] Publisher https://arxiv.org/abs/1010.1684

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