Efficiency at maximum power of a heat engine working with a two-level atomic system.

: We consider the finite-time operation of a quantum heat engine whose working substance is composed of a two-level atomic system. The engine cycle, consisting of two quantum adiabatic and two quantum isochoric (constant-frequency) processes and working between two heat reservoirs at temperatures T(h) and T(c)(

Keywords:

• Classical mechanics
• Combined cycle
• Maximum power principle
• Thermodynamics
• Thermal efficiency
• Heat engine
• Physics
• Stirling engine
• Mesoscopic physics
• Carnot cycle
• Isochoric process
• Quantum mechanics
• Adiabatic process

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