The Effect of minimal length to the performance of quantum heat engine with Morse oscillator

The impact of minimal length on the performance of a quantum heat engine based on a harmonic oscillator with a Morse potential is examined, using a diatomic molecule as the working substance. The calculation method employs a frequency analog to the inverse potential width, enabling the determination of heat and work for the harmonic oscillator system similarly to a particle confined in a one-dimensional box. A Carnot-like cycle, comprising two isoenergetic and two adiabatic processes, is utilized. Efficiency and power output are evaluated, taking into account heat leakage. The findings reveal that minimal length enhances efficiency and power output at high oscillation frequencies, with the increasing frequency expanding the engine’s optimal operational range.