Topic
Entanglement cost
9 records: 9 unsolved, 0 solved. Filter the catalog by this topic →
-
LOCC entanglement cost of Werner states
What is the entanglement cost of the Werner state \(\rho_{d,p}\) for every integer \(d\geq2\) and every antisymmetric weight \(1/2<p\leq1\), and in particular, does it equal the entanglement of formation?
Unsolved -
LOCC entanglement cost of isotropic states
What is the entanglement cost of the isotropic state \(\sigma_{d,F}\) for every integer \(d\geq2\) and every fidelity \(1/d<F<1\)?
Unsolved -
LOCC entanglement cost of PPT-entangled Gaussian states
What is the exact LOCC entanglement cost of a finite-energy PPT-entangled Gaussian state?
Unsolved -
Additivity of entanglement of formation for two-mode Gaussian states
Is unrestricted entanglement of formation additive on tensor powers of every finite-energy two-mode Gaussian state?
Unsolved -
Exact LOCC entanglement cost of the elegant joint measurement
Is the exact deterministic LOCC entanglement cost of the two-qubit elegant joint measurement \(\mathcal M_{\mathrm{EJM}}\) equal to one ebit when arbitrary finite-dimensional pure entangled resources are allowed?
Unsolved -
Exponential entanglement cost with simultaneous classical communication
Does there exist a family of bipartite unitaries requiring exponentially many shared Bell pairs for fixed-error implementation when classical communication is limited to one simultaneous exchange?
Unsolved -
Second-level collapse of the exact PPT entanglement-cost hierarchy
Does the semidefinite hierarchy for exact PPT entanglement cost collapse at its second level for every finite-dimensional bipartite density operator \(\rho_{AB}\)?
Unsolved -
Entanglement cost of an amplitude-damping-channel Choi state
What is the entanglement cost of the Choi state of the qubit amplitude-damping channel
Unsolved -
Entanglement cost of a qubit Bell-diagonal state
What is the entanglement cost of a qubit Bell-diagonal state for an arbitrary probability vector \(\mathbf p=(p_I,p_X,p_Y,p_Z)\)?
Unsolved