Entangled quantum refrigerator based on two anisotropic spin-1/2 Heisenberg XYZ chain with Dzyaloshinskii–Moriya interactionM. H. Ben Chakour, A. El Allati and Y. HassouniEur. Phys. J. D, 75 2 (2021) 42DOI: https://doi.org/10.1140/epjd/s10053-021-00056-0