  Heat engines are considered a valuable resource for modern society. The
development of these systems leads to the production of heat engines with high
efficiency despite their small size, called quantum heat engines. Among these,
the quantum Otto cycle which is considered a fundamental thermodynamic cycle in
classical heat engines, has also found applications in the realm of quantum
heat engines. In this paper, we consider three InAs quantum dots as a working
substance, which allows the engine to operate at very small scales, in the
presence of an electric field, and the Forster mechanism, which describes the
transfer of energy between quantum dots and affects thus the engine's behavior.
In this regard, we study the behavior of the work performed by the engine and
the entanglement in the system as the Forster parameter is varied. We find that
the work performed by the engine is affected by the Forster interaction and the
electric field and that the entanglement in the system also changed as the
Forster parameter was changed. Finally, we study the influence of entanglement
on the work performed by the engine. We find and discuss the intricate relation
between the entanglement and the performance of the engine.
