A non-Hermitian XY model supplies decoupled idle levels for a quantum Otto engine, allowing the non-Hermitian parameter to control operation mode and raise efficiency.
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Numerical analysis of a two-qubit XYZ Heisenberg quantum Otto engine shows that reduced longitudinal coupling and optimized anisotropy improve net work and efficiency, with concurrence changes between isomagnetic strokes correlating to efficiency gains.
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Quantum Otto engine with decoupled idle levels in a non-Hermitian XY model
A non-Hermitian XY model supplies decoupled idle levels for a quantum Otto engine, allowing the non-Hermitian parameter to control operation mode and raise efficiency.
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Quantum Otto engine powered by an anisotropic Heisenberg XYZ model under independent local magnetic fields
Numerical analysis of a two-qubit XYZ Heisenberg quantum Otto engine shows that reduced longitudinal coupling and optimized anisotropy improve net work and efficiency, with concurrence changes between isomagnetic strokes correlating to efficiency gains.