• DOI:10.1103/PhysRevA.93.012341
Corpus ID: 55779893

Entanglement witness via symmetric two-body correlations

@article{Tan2016EntanglementWV,
  title={Entanglement witness via symmetric two-body correlations},
  author={Ernest Y.-Z. Tan and D. Kaszlikowski and L. C. Kwek},
  journal={Physical Review A},
  year={2016},
  volume={93},
  pages={012341}
}

Ernest Y.-Z. Tan, D. Kaszlikowski, L. C. Kwek

Published 2016

Physics

Physical Review A

We construct an entanglement witness for many-qubit systems, based on symmetric two-body correlations with two measurement settings. This witness is able to detect the entanglement of some Dicke states for any number of particles, and such detection exhibits some robustness against white noise and thermal noise under the Lipkin-Meshkov-Glick Hamiltonian. In addition, it detects the entanglement of spin-squeezed states, with a detection strength that approaches the maximal value for sufficiently… CONTINUE READING

View PDF on arXiv

Save to Library

Create Alert

Cite

Launch Research Feed