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Quantum Heat Machines Enabled by Twisted Geometry by Filgueiras, Cleverson; Rojas, Moises; Silva, Edilberto O.; Romero, Carlos is a scholarly article available to read on EtoBox.

What is Quantum Heat Machines Enabled by Twisted Geometry about?

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.

Author

Filgueiras, Cleverson; Rojas, Moises; Silva, Edilberto O.; Romero, Carlos

Published

2023

Language

EN