Detecting Genuine Multipartite Entanglement with Two Local Measurements
Top Cited Papers
Open Access
- 17 February 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 94 (6) , 060501
- https://doi.org/10.1103/physrevlett.94.060501
Abstract
We present entanglement witness operators for detecting genuine multipartite entanglement. These witnesses are robust against noise and require only two local measurement settings when used in an experiment, independent of the number of qubits. This allows detection of entanglement for an increasing number of parties without a corresponding increase in effort. The witnesses presented detect states close to Greenberger-Horne-Zeilinger, cluster, and graph states. Connections to Bell inequalities are also discussed.Keywords
All Related Versions
This publication has 30 references indexed in Scilit:
- Experimental demonstration of five-photon entanglement and open-destination teleportationNature, 2004
- Experimental Detection of Multipartite Entanglement using Witness OperatorsPhysical Review Letters, 2004
- Experimental Violation of Local Realism by Four-Photon Greenberger-Horne-Zeilinger EntanglementPhysical Review Letters, 2003
- Multiparticle Entanglement Purification for Graph StatesPhysical Review Letters, 2003
- Reflections upon separability and distillabilityJournal of Modern Optics, 2002
- Bell-Type Inequalities to Detect True-Body NonseparabilityPhysical Review Letters, 2002
- Sufficient conditions for three-particle entanglement and their tests in recent experimentsPhysical Review A, 2001
- Characterization of separable states and entanglement witnessesPhysical Review A, 2001
- Optimization of entanglement witnessesPhysical Review A, 2000
- Experimental test of quantum nonlocality in three-photon Greenberger–Horne–Zeilinger entanglementNature, 2000