Related papers: Enhanced Efficiency at Maximum Power in a Fock-Darwin Model Quantum Dot Engine

Enhanced Efficiency at Maximum Power in a Fock-Darwin Model Quantum Dot Engine

URL: http://arxiv.org/abs/2302.04719v1
Date: Thu, 9 Feb 2023 16:02:18 GMT
Title: Enhanced Efficiency at Maximum Power in a Fock-Darwin Model Quantum Dot Engine
Authors: Francisco J. Pe\~na, Nathan M. Myers, Daniel \'Ordenes, Francisco Albarr\'an-Arriagada, Patricio Vargas
Abstract summary: tuning the intensity of the parabolic trap impacts the proposed cycle's performance. A parameter region exists where the efficiency at maximum output power exceeds the Curzon-Ahlborn efficiency.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We study the performance of an endoreversible magnetic Otto cycle with a working substance composed of a single quantum dot described using the well-known Fock-Darwin model. We find that tuning the intensity of the parabolic trap (geometrical confinement) impacts the proposed cycle's performance, quantified by the power, work, efficiency, and parameter region where the cycle operates as an engine. We demonstrate that a parameter region exists where the efficiency at maximum output power exceeds the Curzon-Ahlborn efficiency, the efficiency at maximum power achieved by a classical working substance.

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