Experimental study of mutual information in a Maxwell Demon
Jonne V. Koski, Ville F. Maisi, Takahiro Sagawa, Jukka P. Pekola
TL;DR
This paper experimentally validates the generalized Jarzynski equality in a feedback-controlled single-electron system, highlighting the role of mutual information in thermodynamics of irreversible processes.
Contribution
It provides the first experimental validation of the GJE in a feedback system, emphasizing the equal footing of mutual information and work in thermodynamics.
Findings
Confirmed the GJE in a feedback-controlled electron system
Demonstrated the significance of mutual information in thermodynamic irreversibility
Clarified the role of information in thermodynamic work processes
Abstract
We validate experimentally a fluctuation relation known as generalized Jarzynski equality (GJE) governing the work distribution in a feedback-controlled system. The feedback control is performed on a single electron box analogously to the original Szilard engine. In GJE, mutual information is treated on an equal footing with the thermodynamic work. Our results clarify the role of the mutual information in thermodynamics of irreversible processes.
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