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  • Title: Efficiency at Maximum Power of a Carnot Quantum Information Engine.
    Author: Fadler P, Friedenberger A, Lutz E.
    Journal: Phys Rev Lett; 2023 Jun 16; 130(24):240401. PubMed ID: 37390443.
    Abstract:
    Optimizing the performance of thermal machines is an essential task of thermodynamics. We here consider the optimization of information engines that convert information about the state of a system into work. We concretely introduce a generalized finite-time Carnot cycle for a quantum information engine and optimize its power output in the regime of low dissipation. We derive a general formula for its efficiency at maximum power valid for arbitrary working media. We further investigate the optimal performance of a qubit information engine subjected to weak energy measurements.
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