Bound entanglement

Is the two-way assisted quantum capacity of the Holevo–Werner channel \(\mathcal W_d\) zero for every integer \(d\geq3\)?

• Quantum Communication
• Quantum Resource Theory
• Quantum capacity
• Bound entanglement
• Entanglement distillation

What is the exact LOCC entanglement cost of a finite-energy PPT-entangled Gaussian state?

• Quantum Resource Theory
• Gaussian quantum information
• Bound entanglement
• Entanglement cost

Does there exist a finite-dimensional bipartite state with non-positive partial transpose (NPT) that is undistillable by local operations and classical communication (LOCC)?

• Quantum Resource Theory
• Entanglement distillation
• Bound entanglement
• Local operations and classical communication

Does every finite-dimensional entangled bipartite state have positive asymptotic distillable secret key?

• Quantum Cryptography
• Quantum Resource Theory
• Secret-key distillation
• Bound entanglement
• Local operations and classical communication