期刊
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
卷 39, 期 12, 页码 2717-2753出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1023/A:1026422630734
关键词
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Landauer's principle states that the erasure of one bit of information requires the free energy kT In 2. We argue that the reliability of the bit erasure process is bounded by the accuracy inherent in the statistical state of the energy source (the resources) driving the process. We develop a general framework describing the thermodynamic worth of the resources with respect to reliable bit erasure or good cooling. This worth turns out to be given by the distinguishability of the resource's state from its equilibrium state in the sense of a statistical inference problem. Accordingly. Kullback-Leibler relative information is a decisive quantity Tor the worth of the resource's state. Due to the asymmetry of relative information. the reliability of the erasure process is bounded rather by the relative information of the equilibrium state with respect to the actual state than by the relative information of the actual state with respect to the equilibrium state (which is the free energy up to constants).
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