AI Article Synopsis
- The study compares the performance of classical and quantum magnetic Otto cycles using a single quantum dot as the working substance in the Fock-Darwin model, including Zeeman interaction.
- It was observed that the classical approach exhibited oscillating behavior in the total work extracted, while this behavior was absent in the quantum model.
- The classical engine outperformed the quantum engine in terms of total work and efficiency due to better thermal equilibrium at each cycle point, leading to greater energy extraction during adiabatic strokes.*
Article Abstract
We studied the performance of classical and quantum magnetic Otto cycle with a working substance composed of a single quantum dot using the Fock-Darwin model with the inclusion of the Zeeman interaction. Modulating an external/perpendicular magnetic field, in the classical approach, we found an oscillating behavior in the total work extracted that was not present in the quantum formulation.We found that, in the classical approach, the engine yielded a greater performance in terms of total work extracted and efficiency than when compared with the quantum approach. This is because, in the classical case, the working substance can be in thermal equilibrium at each point of the cycle, which maximizes the energy extracted in the adiabatic strokes.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7515002 | PMC |
| http://dx.doi.org/10.3390/e21050512 | DOI Listing |
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