Device fabrication for investigating Maxwell's Demon at room-temperature using double quantum dot transistors in silicon
File(s)
Published version
Author(s)
Abualnaja, Faris
He, Wenkun
Jones, Mervyn
Durrani, Zahid
Type
Journal Article
Abstract
Maxwell's Demon and its development by Szilard to a single particle engine, probe the limits of the 2nd law of thermodynamics and demonstrate a link between entropy and information. With advances in nanofabrication techniques, these thought experiments are becoming feasible. Room temperature (RT) dual-gate double quantum dot (DQD) transistors have been fabricated using electron beam lithography and geometric oxidation. Measurements at RT have shown device operation, where hexagonal patterns have been extracted from the charge stability diagram. These patterns imply ideal underlying characteristics and have been simulated in the form of a series DQD transistor. The boundaries of hexagonal regions correspond to a one-electron exchange between the coupled QDs. Carefully defined gate voltage trajectories crossing these boundaries show the behaviour of Szilard's engine and an identical minimum entropy of −kB ln 2. These results suggest that DQD devices, even those that operate at RT, can be used to investigate the limits of the 2nd law of thermodynamics.
Date Issued
2022-04-01
Date Acceptance
2022-02-19
Citation
Micro and Nano Engineering, 2022, 14
ISSN
2590-0072
Publisher
Elsevier
Journal / Book Title
Micro and Nano Engineering
Volume
14
Copyright Statement
2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/)
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000820702300010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Double quantum dots
ELECTRON-TRANSPORT
Engineering
Engineering, Electrical & Electronic
Materials Science
Materials Science, Multidisciplinary
Nanofabrication
Nanoscale thermodynamics
Nanoscience & Nanotechnology
Optics
Physical Sciences
Physics
Physics, Applied
Quantum dot transistor
Science & Technology
Science & Technology - Other Topics
Technology
Publication Status
Published
Article Number
ARTN 100114
Date Publish Online
2022-02-22