InAs three quantum dots as working substance for quantum heat engine

TL;DR

This paper investigates a quantum heat engine using three InAs quantum dots as the working substance, analyzing how the Forster energy transfer mechanism and electric field influence work output and entanglement, revealing their complex relationship.

Contribution

It introduces a model of a quantum heat engine based on three InAs quantum dots, incorporating the Forster mechanism and electric field effects, and explores their impact on engine performance and entanglement.

Findings

Work output is affected by the Forster interaction and electric field.

Entanglement varies with the Forster parameter.

Entanglement influences the engine's performance.

Abstract

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.