OpenAI reports classical capacity of generalized amplitude damping

For every qubit generalized amplitude-damping channel with both parameters in [0,1], unassisted classical capacity equals its one-use Holevo information and an attained one-variable maximum; Holevo information is additive over all repeated uses.

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For every qubit generalized amplitude-damping channel with both parameters in [0,1], unassisted classical capacity equals its one-use Holevo information and an attained one-variable maximum; Holevo information is additive over all repeated uses.

Why it matters

If correct, determines the unrestricted classical capacity of every qubit generalized amplitude-damping channel.

What counts as progress

What is the unassisted classical capacity of a generalized amplitude-damping channel?

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