Bosonic channels

Is Guha’s multimode Strong Conjecture 2 true for every correlated input state?

• Quantum Communication
• Bosonic channels
• Matrix and entropy inequalities

Does the pure-loss bosonic channel admit the following candidate second-order classical converse under a maximum-photon-number occupation constraint?

• Quantum Communication
• Bosonic channels
• Classical capacity
• One-shot and finite-blocklength bounds

What is the unconstrained, unassisted quantum capacity of the single-mode Gaussian random-displacement channel?

• Quantum Communication
• Quantum capacity
• Bosonic channels

For \(0<\eta<1\) and \(0<\nu<\infty\), let the single-mode bosonic thermal attenuator be

• Quantum Communication
• Quantum capacity
• Bosonic channels

Let \(\Phi_{\eta,\nu}\) be the single-mode bosonic thermal attenuator with transmissivity \(0<\eta<1\) and environmental mean photon number \(0<\nu<\infty\), defined by

• Quantum Communication
• Quantum capacity
• Bosonic channels

For \(0<\eta<1\) and \(0<\nu<\infty\), let the single-mode bosonic thermal attenuator be

• Quantum Communication
• Quantum capacity
• Bosonic channels