Quantum Otto cycle with inner friction: finite-time and disorder effects

@article{Alecce2015QuantumOC,
  title={Quantum Otto cycle with inner friction: finite-time and disorder effects},
  author={Antonio Alecce and Fernando Galve and N. Lo Gullo and Luca Dell'Anna and Francesco Plastina and Roberta Zambrini},
  journal={New Journal of Physics},
  year={2015},
  volume={17},
  pages={075007}
}
The concept of inner friction, by which a quantum heat engine is unable to follow adiabatically its strokes and thus dissipates useful energy, is illustrated in an exact physical model where the working substance consists of an ensemble of misaligned spins interacting with a magnetic field and performing the Otto cycle. The effect of this static disorder under a finite-time cycle gives a new perspective of the concept of inner friction under realistic settings. We investigate the efficiency and… Expand

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