59 citations · 86 across the 3 of their papers we have counts for
3 papers
Maximally entangled mixed states for qubit-qutrit systems
Paulo E. M. F. Mendonca, Marcelo A. Marchiolli, Samuel R. Hedemann
We consider the problems of maximizing the entanglement negativity of X-form qubit-qutrit density matrices with (i) a fixed spectrum and (ii) a fixed purity. In the first case, the…
Heuristic for estimation of multiqubit genuine multipartite entanglement
Paulo E. M. F. Mendonca, Marcelo A. Marchiolli, Gerard J. Milburn
For every N-qubit density matrix written in the computational basis, an associated "X-density matrix" can be obtained by vanishing all entries out of the main- and anti-diagonals.…
Entanglement universality of two-qubit X-states
Paulo E. M. F. Mendonca, Marcelo A. Marchiolli, Diógenes Galetti
We demonstrate that for every two-qubit state there is a X-counterpart, i.e., a corresponding two-qubit X-state of same spectrum and entanglement, as measured by concurrence, negat…