  We examine a quantum heat engine with an interacting many-body working medium
consisting of the long-range Kitaev chain to explore the role of long-range
interactions in the performance of the quantum engine. By analytically studying
two type of thermodynamic cycles, namely Otto cycle and Stirling cycle, we
demonstrate that the work output and efficiency of long-range interacting heat
engine can be boosted by long-range interactions, in comparison to the
short-range counterpart. We further show that in the Otto cycle, there exist an
optimal condition for which the largest enhancement of work output and
efficiency can be achieved simultaneously by the long-range interactions. But,
for the Stirling cycle, the condition that gives the largest enhancement in
work output does not lead to the largest enhancement in efficiency. We also
investigate how the parameter regimes under which the engine performance is
enhanced by the long-range interactions is evolved with decrease in the range
of interaction.
