Rectification of thermal fluctuations in a chaotic cavity heat engine

Björn Sothmann, Rafael Sánchez, Andrew N. Jordan, Markus Büttiker
2012 Physical Review B  
We investigate the rectification of thermal fluctuations in a mesoscopic on-chip heat engine. The engine consists of a hot chaotic cavity capacitively coupled to a cold cavity which rectifies the excess noise and generates a directed current. The fluctuation-induced directed current depends on the energy asymmetry of the transmissions of the contacts of the cold cavity to the leads and is proportional to the temperature difference. We discuss the maximal power output of the heat engine and its
more » ... eat engine and its efficiency.
doi:10.1103/physrevb.85.205301 fatcat:u27kc3cefbbmxftehmmtplsbiy