With finite resources, classical erasure via majority voting can be made arbitrarily accurate in one interaction by adding subsystems, while a single qubit is capped by a fidelity ceiling — the asymptotic Landauer bound is the same, but the resource costs are not.
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Quantum vs Classical Erasure: Equal Bounds but Unequal Costs
With finite resources, classical erasure via majority voting can be made arbitrarily accurate in one interaction by adding subsystems, while a single qubit is capped by a fidelity ceiling — the asymptotic Landauer bound is the same, but the resource costs are not.