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We examine a quantum heat engine with an interacting many-body working mediumconsisting of the long-range Kitaev chain to explore the role of long-rangeinteractions in the performance of the quantum engine. By analytically studyingtwo type of thermodynamic cycles, namely Otto cycle and Stirling cycle, wedemonstrate that the work output and efficiency of long-range interacting heatengine can be boosted by long-range interactions, in comparison to theshort-range counterpart. We further show that in the Otto cycle, there exist anoptimal condition for which the largest enhancement of work output andefficiency can be achieved simultaneously by the long-range interactions. But,for the Stirling cycle, the condition that gives the largest enhancement inwork output does not lead to the largest enhancement in efficiency. We alsoinvestigate how the parameter regimes under which the engine performance isenhanced by the long-range interactions is evolved with decrease in the rangeof interaction.

Performance of quantum heat engines under the influence of long-range interactions