Abstract
Throughout this paper, we describe an analytical solution for a three-qubit system characterized by a finite temperature within a thermodynamic limit influenced by a quantum spin environment. As applications to the presented solution, we investigate the effect of the temperature, the coupling constant epsilon(0) within the spin- qubit system and an external magnetic field on the three-particles residual entanglement N-abs, the concurrence C (rho), the information entropy H (sigma(z)) and the linear entropy P-p (t). The results show an inverse relationship between the entanglement and entropy, where the degree of both is controlled by controlling the temperature T and the coupling constant epsilon(0).