Phys. Rev. Lett. 92, 087902 (2004) [4 pages]Experimental Detection of Multipartite Entanglement using Witness OperatorsReceived 31 August 2003; published 26 February 2004 We present the experimental detection of genuine multipartite entanglement using entanglement witness operators. To this aim, we introduce a canonical way of constructing and decomposing witness operators so that they can be directly implemented with present technology. We apply this method to three- and four-qubit entangled states of polarized photons, giving experimental evidence that the considered states contain true multipartite entanglement. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.087902
DOI:
10.1103/PhysRevLett.92.087902
PACS:
03.67.Mn, 03.65.Ud, 42.50.Dv
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.