Selected Publications

On-Chip Maxwell's Demon as an Information-Powered Refrigerator

J. Koski, A. Kutvonen, I. Khaymovich, T. Ala-Nissila, J. Pekola
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.

physical review letters 115 26, 1-5

doi: 10.1103/PhysRevLett.115.260602