Maxwell's demon in a double quantum dot with continuous charge detection

Annby-Andersson, Bjorn and Samuelsson, Peter and Maisi, Ville F. and Potts, Patrick P.. (2020) Maxwell's demon in a double quantum dot with continuous charge detection. Physical Review B, 101 (16). p. 165404.

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Official URL: https://edoc.unibas.ch/82980/

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Converting information into work has, during the past decade, gained renewed interest as it gives insight into the relation between information theory and thermodynamics. Here, we theoretically investigate an implementation of Maxwell's demon in a double quantum dot and demonstrate how heat can be converted into work using only information. This is accomplished by continuously monitoring the charge state of the quantum dots and transferring electrons against a voltage bias using a feedback scheme. We investigate the electrical work produced by the demon and find a non-Gaussian work distribution. To illustrate the effect of a realistic charge detection scheme, we develop a model taking into account noise as well as a finite delay time and show that an experimental realization is feasible with present day technology. Depending on the accuracy of the measurement, the system is operated as an implementation of Maxwell's demon or a single-electron pump.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretical Quantum Physics (Potts)
UniBasel Contributors:Potts, Patrick
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:26 May 2021 07:14
Deposited On:10 May 2021 15:49

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