New considerations on the separability of very noisy mixed states and implications for NMR quantum computing

J. D. Bulnes, R. S. Sarthour, E. R. de Azevedo +5

We revise the problem first addressed by Braunstein and co-workers (Phys. Rev. Lett. {\bf 83} (5) (1999) 1054) concerning the separability of very noisy mixed states represented by…