Skip to main content
Passa alla visualizzazione normale.


Pari opportunità

BENEDETTO MILITELLO

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

  • Authors: Militello, B; Messina, A
  • Publication year: 2011
  • Type: Articolo in rivista (Articolo in rivista)
  • Key words: Entanglement, Termodinamica, Spin
  • OA Link: http://hdl.handle.net/10447/53749

Abstract

In a recent paper [M. Huber et al, Phys. Rev. Lett. 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 those based on the tripartite negativity is also made.