Quantum heat machines enabled by twisted geometry
| Autor: | Filgueiras, Cleverson, Rojas, Moises, Silva, Edilberto O., Romero, Carlos |
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| Rok vydání: | 2023 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1142/S0219887824500099 |
| Popis: | In this paper, we analyze the operation of an Otto cycle heat machine driven by a non-interacting two-dimensional electron gas on a twisted geometry. We show that due to both the energy quantization on this structure and the adiabatic transformation of the number of complete twists per unit length of a helicoid, the machine performance in terms of output work, efficiency, and operation mode can be altered. We consider the deformations as in a spring, which is either compressed or stretched from its resting position. The realization of classically inconceivable Otto machines with an incompressible sample can be realized as well. The energy-level spacing of the system is the quantity that is being either compressed or stretched. These features are due to the existence of an effective geometry-induced quantum potential which is of pure quantum-mechanical origin. Comment: 8 pages, 8 figures. Accepted for publication in the International Journal of Geometric Methods in Modern Physics |
| Databáze: | arXiv |
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