@article{47a2d152a6d34707942295ce111cff9d, title = "The smallest refrigerators can reach maximal efficiency", abstract = "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.", author = "Paul Skrzypczyk and Nicolas Brunner and Noah Linden and Sandu Popescu", year = "2011", month = "12", day = "9", doi = "10.1088/1751-8113/44/49/492002", language = "English", volume = "44", pages = "--", journal = "Journal of Physics A: Mathematical and Theoretical", issn = "1751-8113", publisher = "IOP Publishing", number = "49", }