Adaptive work extraction from unknown pure qubits can reach O(polylog N) cumulative dissipation, an exponential improvement over the square-root scaling of tomography-based strategies.
Specifically, for each ofMrepetitions (indexed byτ∈[M]), the agent: •Sets the energy gap of the reservoir qubit toν(τ,ϵ k) (see Eq
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Quantum state-agnostic work extraction (almost) without dissipation
Adaptive work extraction from unknown pure qubits can reach O(polylog N) cumulative dissipation, an exponential improvement over the square-root scaling of tomography-based strategies.