Detecting multiparticle entanglement of Dicke states

Research output: Contribution to journal › Article › Research › peer review

Authors

  • Bernd Lücke
  • Jan Peise
  • Giuseppe Vitagliano
  • Jan Arlt
  • Luis Santos
  • Géza Tóth
  • Carsten Klempt

Research Organisations

External Research Organisations

  • University of the Basque Country
  • Aarhus University
  • Ikerbasque, the Basque Foundation for Science
  • Hungarian Academy of Sciences
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Details

Original languageEnglish
Article number155304
JournalPhysical Review Letters
Volume112
Issue number15
Publication statusPublished - 17 Apr 2014

Abstract

Recent experiments demonstrate the production of many thousands of neutral atoms entangled in their spin degrees of freedom. We present a criterion for estimating the amount of entanglement based on a measurement of the global spin. It outperforms previous criteria and applies to a wider class of entangled states, including Dicke states. Experimentally, we produce a Dicke-like state using spin dynamics in a Bose-Einstein condensate. Our criterion proves that it contains at least genuine 28-particle entanglement. We infer a generalized squeezing parameter of -11.4(5) dB.

ASJC Scopus subject areas

Cite this

Detecting multiparticle entanglement of Dicke states. / Lücke, Bernd; Peise, Jan; Vitagliano, Giuseppe et al.
In: Physical Review Letters, Vol. 112, No. 15, 155304, 17.04.2014.

Research output: Contribution to journal › Article › Research › peer review

Lücke, B, Peise, J, Vitagliano, G, Arlt, J, Santos, L, Tóth, G & Klempt, C 2014, 'Detecting multiparticle entanglement of Dicke states', Physical Review Letters, vol. 112, no. 15, 155304. https://doi.org/10.1103/PhysRevLett.112.155304
Lücke, B., Peise, J., Vitagliano, G., Arlt, J., Santos, L., Tóth, G., & Klempt, C. (2014). Detecting multiparticle entanglement of Dicke states. Physical Review Letters, 112(15), Article 155304. https://doi.org/10.1103/PhysRevLett.112.155304
Lücke B, Peise J, Vitagliano G, Arlt J, Santos L, Tóth G et al. Detecting multiparticle entanglement of Dicke states. Physical Review Letters. 2014 Apr 17;112(15):155304. doi: 10.1103/PhysRevLett.112.155304
Lücke, Bernd ; Peise, Jan ; Vitagliano, Giuseppe et al. / Detecting multiparticle entanglement of Dicke states. In: Physical Review Letters. 2014 ; Vol. 112, No. 15.
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