Detection of entanglement with few local measurements
By O. Guehne, P. Hyllus, D. Bruß, A. Ekert, Maciej Lewenstein, C. Macchiavello, Anna Sanpera. 2002
185 citations recorded by the source corpus.
We introduce a general method for the experimental detection of entanglement by performing only few local measurements, assuming some prior knowledge of the density matrix. The idea is based on the minimal decomposition of witness operators into a pseudomixture of local operators. We discuss an experimentally relevant case of two qubits, and show an example how bound entanglement can be detected with few local measurements.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/f1d84d0fc097f91337ec16de275a5add03f93400
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Artificial Intelligence
- Otfried Gühne
- Géza Tóth
- Roger Colbeck
- Kevin J. Resch
- Deny Hamel
- Renato Renner
- Marcus Huber
- Xiaoguang Wang
In Atomic and Molecular Physics, and Optics
- Otfried Gühne
- Géza Tóth
- Roger Colbeck
- Deny Hamel
- Marcus Huber
- Renato Renner
- Xiaoguang Wang
- Franco Nori
Citations in the corpus
- Experimental investigation of the uncertainty principle in the presence of quantum memory and its application to witnessing entanglement (2010, background): “In practice, to infer the value of these witness operators, they are often decomposed into locally measurable part”
- Entanglement detection (2008, methodology): “Therefore, for the experimental implementation it is necessary to decompose the witness into operators that can be measured locally [20,382].”
- Geometry of Quantum States: Index (2007, unknown): “[371] when characterising entanglement witnesses.”