160 citations · 168 across the 2 of their papers we have counts for
2 papers
quant-ph1999★ 160 cited
Separability in 2xN composite quantum systems
B. Kraus, J. I. Cirac, S. Karnas +1
We analyze the separability properties of density operators supported on $\C^2\otimes \C^N$ whose partial transposes are positive operators. We show that if the rank of equals…
hep-th1997★ 8 cited
An action of N=8 self-dual supergravity in ultra-hyperbolic harmonic superspace
Sinisa Karnas, Sergei V. Ketov
The N-extended self-dual supergravity in the ultra-hyperbolic four-dimensional spacetime of kleinian signature (2+2) is given in the N-extended harmonic superspace. We reformulate…