Viable entanglement detection of unknown mixed states in low dimensions

Details Viable entanglement detection of unknown mixed states in low dimensions Viable entanglement detection of unknown mixed states in low dimensions

2009-07-06

arxiv.org/abs/0907.1114v1

Phys. Rev A 80, 032325 (2009)

Physics

Quantum Physics

8 pages, 9 figures, 4 tables

Scientific paper

10.1103/PhysRevA.80.032325

We explore procedures to detect entanglement of unknown mixed states, which can be experimentally viable. The heart of the method is a hierarchy of simple feasibility problems, which provides sufficient conditions to entanglement. Our numerical investigations indicate that the entanglement is detected with a cost which is much lower than full state tomography. The procedure is applicable to both free and bound entanglement, and involves only single copy measurements.

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