Efficiency at maximum power of a quantum Otto cycle within finite-time or irreversible thermodynamics
Efficiency at maximum power of a quantum Otto cycle within finite-time or irreversible thermodynamics
We consider the efficiency at maximum power of a quantum Otto engine, which uses a spin or a harmonic system as its working substance and works between two heat reservoirs at constant temperatures $T_h$ and $T_c$ $ (<T_h)$. Although the spin-$1/2$ system behaves quite differently from the harmonic system in …