63 citations · 109 across the 13 of their papers we have counts for
4 papers · 2 filters
Entanglement of purification for Werner states: canonical purification and nonadditivity
Zahra Baghali Khanian, Amir-Reza Negari
We prove that the von Neumann entanglement of purification is nonadditive. For two-qubit Werner states with singlet weight , we show that canonical purifica…
From Permutation Symmetry to Communication Bounds and Additivity
Zahra Baghali Khanian, Debbie Leung, Graeme Smith
Correlations across channel uses can improve quantum communication rates, making optimization over arbitrarily large blocks a central difficulty in determining quantum capacity. We…
Rényi Entanglement of Purification Is Non-additive
Amir-Reza Negari, Zahra Baghali Khanian
Entanglement of purification is a fundamental measure of total correlations whose additivity remains unresolved. We study its additivity for classical states on two qubits at diffe…
Additivity Results for the Rényi-2 Entanglement of Purification
Shokoufe Faraji, Zahra Baghali Khanian
We reformulate the Rényi entanglement of purification as a constrained minimum output Rényi entropy problem. Equivalently, for , this formulation can be expressed in terms of…