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arXiv · 2307.16001

Quantum heat machines enabled by twisted geometry

Cleverson Filgueiras·Moises Rojas·Edilberto O. Silva·Carlos Romero
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Abstract

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.

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Cleverson Filgueiras, Moises Rojas, Edilberto O. Silva, Carlos Romero. 2023-07-29. Quantum heat machines enabled by twisted geometry. https://doi.org/10.1142/s0219887824500099

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