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  • Title: Role of the superposition principle for enhancing the efficiency of the quantum-mechanical Carnot engine.
    Author: Abe S, Okuyama S.
    Journal: Phys Rev E Stat Nonlin Soft Matter Phys; 2012 Jan; 85(1 Pt 1):011104. PubMed ID: 22400509.
    Abstract:
    The role of the superposition principle is discussed for the quantum-mechanical Carnot engine introduced by Bender, Brody, and Meister [J. Phys. A 33, 4427 (2000)]. It is shown that the efficiency of the engine can be enhanced by the superposition of quantum states. A finite-time process is also discussed and the condition of the maximum power output is presented. Interestingly, the efficiency at the maximum power is lower than that without superposition.
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