We investigate whether size imposes a fundamental constraint on the efficiency of small thermal machines. We analyse in detail a model of a small self-contained refrigerator consisting of three qubits. We show analytically that this system can reach the Carnot efficiency, thus demonstrating that there exists no complementarity between size and efficiency.
|Number of pages||7|
|Journal||Journal of Physics A: Mathematical and Theoretical|
|Publication status||Published - 9 Dec 2011|