Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevLett.103.100502
Title: Multipartite entanglement detection via structure factors
Authors: Krammer, P.
Kampermann, H.
Bruß, D.
Bertlmann, R.A.
Kwek, L.C. 
MacChiavello, C.
Issue Date: 3-Sep-2009
Citation: Krammer, P., Kampermann, H., Bruß, D., Bertlmann, R.A., Kwek, L.C., MacChiavello, C. (2009-09-03). Multipartite entanglement detection via structure factors. Physical Review Letters 103 (10) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.103.100502
Abstract: We establish a relation between entanglement of a many-body system and its diffractive properties, where the link is given by structure factors. Based on these, we provide a general analytical construction of multiqubit entanglement witnesses. The proposed witnesses contain two-point correlations. They could be either measured in a scattering experiment or via local measurements, depending on the underlying physical system. For some explicit examples of witnesses we analyze the properties of the states that are detected by them. We further study the robustness of these witnesses with respect to noise. © 2009 The American Physical Society.
Source Title: Physical Review Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/115819
ISSN: 00319007
DOI: 10.1103/PhysRevLett.103.100502
Appears in Collections:Staff Publications

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