Genuine tripartite entanglement in a spin-star network at thermal equilibrium

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.042305· OSTI ID:21544573

Militello, B; Messina, A ^[1]

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1. Dipartimento di Fisica dell'Universita di Palermo, Via Archirafi 36, I-90123 Palermo (Italy)

In a recent paper [M. Huber et al., Phys. Rev. Lett. 104, 210501 (2010)], new criteria to determine the presence of multipartite entanglement were given. We exploit these tools 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 those based on the tripartite negativity is also made.

• OSTI ID: 21544573
• Journal Information: Physical Review. A, Vol. 83, Issue 4; Other Information: DOI: 10.1103/PhysRevA.83.042305; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CIRCUIT THEORY
COMPARATIVE EVALUATIONS
QUANTUM ENTANGLEMENT
QUANTUM INFORMATION
SPIN
THERMAL EQUILIBRIUM
ANGULAR MOMENTUM
EQUILIBRIUM
EVALUATION
INFORMATION
PARTICLE PROPERTIES