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Energy-constrained two-way capacity bounds for noisy Gaussian channels

Pirandola, Stefano
arXiv (All) · Papers
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mathematical-physicsopticsquantum-physics
A gap between achievable rates and converse bounds persists for energy-constrained bosonic communication in the presence of excess noise. We derive a unified adaptive weak-converse bound for thermal attenuation, noisy amplification, and additive Gaussian noise under an unconditional mean transmitted
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