Finite-time quantum Otto engine: Surpassing the quasistatic efficiency due to friction.

  title={Finite-time quantum Otto engine: Surpassing the quasistatic efficiency due to friction.},
  author={Sangyun Lee and Meesoon Ha and Jong-Min Park and Hawoong Jeong},
  journal={Physical review. E},
  volume={101 2-1},
In finite-time quantum heat engines, some work is consumed to drive a working fluid accompanying coherence, which is called "friction." To understand the role of friction in quantum thermodynamics, we present a couple of finite-time quantum Otto cycles with two different baths: Agarwal versus Lindbladian. We solve them exactly and compare the performance of the Agarwal engine with that of the Lindbladian engine. In particular, we find remarkable and counterintuitive results that the performance… 

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