We construct a quantum critical Otto engine powered by finite temperature baths, demonstrating that work output shows universal power law behavior influenced by critical exponents and bath temperature.
At higher temperatures of the cold bath, the engine can approach adiabatic operation limits for shorter time periods, and work output peaks at an intermediate cold bath temperature.
These counterintuitive results arise because thermal excitations dominate the dynamics at elevated temperatures, reshaping our understanding of quantum thermodynamics in efficiency and output.
Quantum thermodynamics links quantum mechanics and thermodynamics, fostering advancements in nanoscale devices that leverage quantum characteristics in their working medium.
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