Szilard's heat engine
The Rockefeller University - 1230 York Avenue, New York, NY 10021, USA
Accepted: 25 January 1996
Szilard presented the first concrete embodyment of a Maxwell demon. We present a detailed kinematic analysis of his heat engine. We find that the phase space contains a branched manifold. After defining carefully the physical dynamics on such an object, we prove that the engine must operate at a loss.
PACS: 05.40.+j – Fluctuation phenomena, random processes, and Brownian motion / 05.70.-a – Thermodynamics / 87.10.+e – General, theoretical, and mathematical biophysics (including logic of biosystems, quantum biology, and relevant aspects of thermodynamics, information theory, cybernetics, and bionics)
© EDP Sciences, 1996