@Article{Toyabe_etal2010,
author="Toyabe, Shoichi
and Sagawa, Takahiro
and Ueda, Masahito
and Muneyuki, Eiro
and Sano, Masaki",
title="Experimental demonstration of information-to-energy conversion and validation of the generalized Jarzynski equality",
journal="Nature Physics",
year="2010",
volume="6",
number="12",
pages="988--992",
optkeywords="fromIPMRAS",
abstract="In 1929, Leo Szilard invented a feedback protocol in which a hypothetical intelligence called Maxwell{\textquoteright}s demon pumps heat from an isothermal environment and transduces it to work. After an intense controversy that lasted over eighty years; it was finally clarified that the demon{\textquoteright}s role does not contradict the second law of thermodynamics, implying that we can convert information to free energy in principle. Nevertheless, experimental demonstration of this information-to-energy conversion has been elusive. Here, we demonstrate that a nonequilibrium feedback manipulation of a Brownian particle based on information about its location achieves a Szilard-type information-energy conversion. Under real-time feedback control, the particle climbs up a spiral-stairs-like potential exerted by an electric field and obtains free energy larger than the amount of work performed on it. This enables us to verify the generalized Jarzynski equality, or a new fundamental principle of {\textquoteleft}{\textquoteleft}information-heat engine{\textquoteright}{\textquoteright} which converts information to energy by feedback control.",
optnote="exported from refbase (https://db.rplab.ru/refbase/show.php?record=831), last updated on Wed, 13 Jun 2012 18:55:57 -0500"
}