Negativity and Concurrence as complete entanglement measures for two arbitrary qudits
Quantum Physics
2007-05-23 v1
Abstract
Two measures of entanglement, negativity and concurrence are studied for two arbitrary qudits. We obtain negativity as an expectation value of an operator. The differences of the squares of negativity and concurrence are invariants of multilevel entanglement. Explicit results for qutrits and quadrits are obtained.
Cite
@article{arxiv.quant-ph/0508045,
title = {Negativity and Concurrence as complete entanglement measures for two arbitrary qudits},
author = {Suranjana Rai and Jagdish R. Luthra},
journal= {arXiv preprint arXiv:quant-ph/0508045},
year = {2007}
}