We investigate the nonequilibrium refrigeration of one and two-qubit systems
in a squeezed thermal bath. We characterize the performance of one and
two-qubit refrigerators in the presence of squeezed heat baths, in terms of
their coefficients of performance, cooling rates, and figures of merit. Our
results show that the performance of the refrigerators is strongly influenced
by the squeezing parameter and the number of qubits. The performance of the
two-qubit refrigerator is found to be better than that of the one-qubit
refrigerator under the same operating conditions. Our findings suggest that a
squeezed thermal bath can be a promising resource for the design of efficient
quantum refrigerators in the non-equilibrium regime.Comment: 17 pages, 10 figure