Witnessing entanglement in hybrid systems

Massimo Borrelli, Matteo Rossi, Chiara MacChiavello, Sabrina Maniscalco

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)
62 Downloads (Pure)


We extend the definition of entanglement witnesses based on spin structure factors to the case of scatterers with quantum mechanical motion. We show that this allows for hybrid entanglement detection and specialize the witness for a chain of trapped ions. Within this framework, we also show how the collective vibronic state of the chain can act as an undesired quantum environment affecting the spin-spin-entanglement detection. Furthermore, we investigate several specific cases where these witness operators allow us to detect hybrid entanglement.

Original languageEnglish
Article number020301
Pages (from-to)1-5
Number of pages5
JournalPhysical Review A
Issue number2
Publication statusPublished - 1 Aug 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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