Viable entanglement detection of unknown mixed states in low dimensions
Thiago O. Maciel, Reinaldo O. Vianna · Physical Review A · 2009
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 entanglements and involves only single copy measurements.