Journal
PHYSICAL REVIEW LETTERS
Volume 103, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.103.100502
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Funding
- Austrian Science Foundation [W1210-N16]
- National Research Foundation & Ministry of Education, Singapore
- EU
- Deutsche Forschungsgemeinschaft (DFG)
- Perimeter Institute for Theoretical Physics
- Austrian Science Fund (FWF) [W1210] Funding Source: Austrian Science Fund (FWF)
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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.
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