Araya, C.; Peña, F.J.; Norambuena, A.; Castorene, B.; Vargas, P. Magnetic Stirling Cycle for Qubits with Anisotropy near the Quantum Critical Point. Technologies2023, 11, 169.
Araya, C.; Peña, F.J.; Norambuena, A.; Castorene, B.; Vargas, P. Magnetic Stirling Cycle for Qubits with Anisotropy near the Quantum Critical Point. Technologies 2023, 11, 169.
Araya, C.; Peña, F.J.; Norambuena, A.; Castorene, B.; Vargas, P. Magnetic Stirling Cycle for Qubits with Anisotropy near the Quantum Critical Point. Technologies2023, 11, 169.
Araya, C.; Peña, F.J.; Norambuena, A.; Castorene, B.; Vargas, P. Magnetic Stirling Cycle for Qubits with Anisotropy near the Quantum Critical Point. Technologies 2023, 11, 169.
Abstract
We studied the performance of a quantum magnetic Stirling cycle that uses a working substance composed of two entangled antiferromagnetic qubits (J) under the influence of an external magnetic field (Bz) and an uniaxial anisotropy field (K) along the total spin in the y-direction. The efficiency and work were calculated as a function of Bz and for different values of the anisotropy constant K given hot and cold reservoir temperatures. The anisotropy has been shown to extend the region of the external magnetic field in which the Stirling cycle is more efficient compared to the ideal case.
Keywords
Entangled qubits; magnetic cycle; quantum thermodynamics; Stirling cycle
Subject
Physical Sciences, Thermodynamics
Copyright:
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