For active particles dragged in a harmonic trap, closed-loop control with a single self-propulsion measurement reduces average external work and enables an information engine whose efficiency is bounded by 1/(4 ln2).
We now consider the case where the controller applies the protocol λv0 in Eq
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Active particles in moving traps: minimum work protocols and information efficiency of work extraction
For active particles dragged in a harmonic trap, closed-loop control with a single self-propulsion measurement reduces average external work and enables an information engine whose efficiency is bounded by 1/(4 ln2).