Experimental realization of a Szilard engine with a single electron.
basic_science · Level V
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- Record sourced from PubMed, PMID 25201966.
- Also identified by DOI 10.1073/pnas.1406966111 and PMC identifier 4183300.
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Abstract
The most succinct manifestation of the second law of thermodynamics is the limitation imposed by the Landauer principle on the amount of heat a Maxwell demon (MD) can convert into free energy per single bit of information obtained in a measurement. We propose and realize an electronic MD based on a single-electron box operated as a Szilard engine, where kBT ln 2 of heat is extracted from the reservoir at temperature T per one bit of created information. The information is encoded in the position of an extra electron in the box.