TY - JOUR

T1 - How Small Can Thermal Machines Be? The Smallest Possible Refrigerator

AU - Linden, Noah

AU - Popescu, Sandu

AU - Skrzypczyk, Paul

N1 - Publisher: The American Physical Society

PY - 2010/9/21

Y1 - 2010/9/21

N2 - We investigate the fundamental dimensional limits to thermodynamic machines. In particular, we show that it is possible to construct self-contained refrigerators (i.e., not requiring external sources of work) consisting of only a small number of qubits and/or qutrits. We present three different models, consisting of two qubits, a qubit and a qutrit with nearest-neighbor interactions, and a single qutrit, respectively. We then investigate the fundamental limits to their performance; in particular, we show that it is possible to cool towards absolute zero.

AB - We investigate the fundamental dimensional limits to thermodynamic machines. In particular, we show that it is possible to construct self-contained refrigerators (i.e., not requiring external sources of work) consisting of only a small number of qubits and/or qutrits. We present three different models, consisting of two qubits, a qubit and a qutrit with nearest-neighbor interactions, and a single qutrit, respectively. We then investigate the fundamental limits to their performance; in particular, we show that it is possible to cool towards absolute zero.

UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-77957132628&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.105.130401

DO - 10.1103/PhysRevLett.105.130401

M3 - Article (Academic Journal)

C2 - 21230755

VL - 105

SP - 1

EP - 4

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 13

M1 - 130401

ER -