26 citations · 26 across the 2 of their papers we have counts for
2 papers
quant-ph2001★ 26 cited
Separability and entanglement in 2x2xN composite quantum systems
S. Karnas, M. Lewenstein
We investigate separability and entanglement of mixed states in three party quantum systems. We show that all states with positive pa…
quant-ph1999
Separability and entanglement in 2xN composite quantum systems
M. Lewenstein, J. I. Cirac, S. Karnas
We show that all density operators of 2--dimensional quantum systems that remain invariant after partial transposition with respect to the first system are separable. Bas…