title: On-Chip Maxwell's Demon as an Information-Powered Refrigerator.
abstract: We present an experimental realization of an autonomous Maxwell's demon, which extracts microscopic information from a system and reduces its entropy by applying feedback. It is based on two capacitively coupled single-electron devices, both integrated on the same electronic circuit. This setup allows a detailed analysis of the thermodynamics of both the demon and the system as well as their mutual information exchange. The operation of the demon is directly observed as a temperature drop in the system. We also observe a simultaneous temperature rise in the demon arising from the thermodynamic cost of generating the mutual information.
authors.affiliation: Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, P.O. Box 13500, FI-00076 Aalto, Espoo, Finland.
authors.forename: J V
authors.initials: JV
authors.lastname: Koski
authors.affiliation: COMP Center of Excellence, Department of Applied Physics, Aalto University School of Science, P.O. Box 11000, FI-00076 Aalto, Espoo, Finland.
authors.forename: A
authors.initials: A
authors.lastname: Kutvonen
authors.affiliation: Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, P.O. Box 13500, FI-00076 Aalto, Espoo, Finland.|Institute for Physics of Microstructures, Russian Academy of Sciences, 603950 Nizhni Novgorod, GSP-105, Russia.
authors.forename: I M
authors.initials: IM
authors.lastname: Khaymovich
authors.affiliation: COMP Center of Excellence, Department of Applied Physics, Aalto University School of Science, P.O. Box 11000, FI-00076 Aalto, Espoo, Finland.|Department of Physics, Brown University, Providence Rhode Island 02912-1843, USA.
authors.forename: T
authors.initials: T
authors.lastname: Ala-Nissila
authors.affiliation: Low Temperature Laboratory, Department of Applied Physics, Aalto University School of Science, P.O. Box 13500, FI-00076 Aalto, Espoo, Finland.
authors.forename: J P
authors.initials: JP
authors.lastname: Pekola