OpenAI reports finite free-entropy separation

There is a bounded self-adjoint tuple X in a von Neumann algebra with faithful normal tracial state for which both microstates and nonmicrostates free entropy are finite yet −∞<χ(X)≤χ*(X)−1/2<∞.

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Understanding the problem

Read the background

There is a bounded self-adjoint tuple X in a von Neumann algebra with faithful normal tracial state for which both microstates and nonmicrostates free entropy are finite yet −∞<χ(X)≤χ*(X)−1/2<∞.

Why it matters

If correct, answers the finite-entropy equality question negatively with a quantitative gap.

What counts as progress

Must finite microstates free entropy equal nonmicrostates free entropy?

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