Abstract :
[en] Energy conversion is most efficient for micro or nano machines with tight coupling
between input and output power. To reach meaningful amounts of power, ensembles of N such
machines must be considered. We use a model system to demonstrate that interactions between
N tightly coupled nanomachines can enhance the power output per machine. Furthermore, while
interactions break tight coupling and thus lower efficiency in finite ensembles, the macroscopic limit
(N → ∞) restores it and enhances both the efficiency and the output power per nanomachine.
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