2015/07/02 by Jonne Koski, J. V. Koski, Aki Kutvonen +6 · 1 voice · 1 citation
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Quantum and electron transport phenomena #Quantum many-body systems #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevlett.115.260602
published as Phys. Rev. Lett. 115, 260602 (2015) · 10 pages, 7 figures
arxiv published 2015/07/02 · arxiv created 2015/11/12 · openalex publication_date 2015/12/30 · arxiv updated 2016/01/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.