Experimental methods for detecting entanglement

J. B. Altepeter, E. R. Jeffrey, P. G. Kwiat, S. Tanzilli, N. Gisin, A. Acín

Research output: Contribution to journalArticlepeer-review


Here we present experimental realizations of two new entanglement detection methods: a three-measurement Bell inequality inequivalent to the Clauser-Horne-Shimony-Holt inequality and a nonlinear Bell-type inequality based on the negativity measure. In addition, we provide an experimental and theoretical comparison between these new methods and several techniques already in use: the traditional Clauser-Horne-Shimony-Holt inequality, the entanglement witness, and complete state tomography.

Original languageEnglish (US)
Article number033601
JournalPhysical review letters
Issue number3
StatePublished - Jul 15 2005

ASJC Scopus subject areas

  • General Physics and Astronomy


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