Entangled quantum refrigerator based on two anisotropic spin-1/2 Heisenberg XYZ chain with Dzyaloshinskii–Moriya interaction

Abstract

A quantum refrigerator based on anisotropic two spin-1/2 Heisenberg XYZ model in external magnetic fields with Dzyaloshinski–Moriya (DM) interaction is suggested. It consists of establishing different expressions of efficiency and thermodynamic quantities as a function of the homogeneous magnetic fields $$B_z$$ and the DM interaction ( $$D_z$$ ). A multipartite concurrence is employed as a measure of thermal entanglement in order to investigate the relationship between the entanglement and thermodynamic quantities. Many particular results related to variations in the coupling constants of the system are shown. However, the results ensure that a variation of the coupling constants has a significant impact on the results of the suggested system. All these investigations are established with respect to the conservation of the second law of thermodynamics.