Viable entanglement detection of unknown mixed states in low dimensions

  title={Viable entanglement detection of unknown mixed states in low dimensions},
  author={Thiago O. Maciel and Reinaldo O. Vianna},
  journal={Physical Review A},
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. 

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