Towards A Single Electron Current On Superfluid Helium
| dc.contributor.advisor | Blumenthal, Mark | |
| dc.contributor.advisor | Nicolls, Frederick | |
| dc.contributor.author | Funk, Oliver | |
| dc.date.accessioned | 2022-02-18T08:25:37Z | |
| dc.date.available | 2022-02-18T08:25:37Z | |
| dc.date.issued | 2021 | |
| dc.date.updated | 2022-02-14T10:00:04Z | |
| dc.description.abstract | The aim of this dissertation was to investigate the application of a system of electrons floating above the surface of superfluid helium to the field of single electron transport. Previous work done by Dr Forrest Bradbury at Princeton University (now a collaborator in the group) demonstrated the highly efficient and precise control of packets of electrons floating on the surface of superfluid helium, localised to channels defined in a silicon substrate. Using similar devices and methodologies, the work done in this dissertation investigates whether this modality of electron transport can be effectively applied to deliver a current of single electrons. Single electron devices have numerous applications in the field of metrology and quantum information processing. They allow for measurements to be made of fundamental quantities, such as the charge of an electron, and further demonstrate various quantum mechanical properties of nature. Presented in this dissertation is the work completed to date, which includes: the design and fabrication of the nanoscale device used to conduct the electrons on superfluid helium experiments, the required electronics needed to control the device and the data acquisition system needed to read various signals off the device. The fabrication was done at Oak Ridge National Labs in the USA. Additionally, a hermetically sealed superfluid cell designed in collaboration with Dr Jay Amrit from UniversitĀ“e Paris-Sud, France used to house the device is presented, as well the probe needed to insert this cell into the dilution fridge. The theory behind the functionality of the device and the way in which it would work is developed. A simulation of working of the device is presented, as well as the expected measurement quantities. The outlook for continued work in this exciting and very novel physical system is also presented. | |
| dc.identifier.apacitation | Funk, O. (2021). <i>Towards A Single Electron Current On Superfluid Helium</i>. (). ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/35733 | en_ZA |
| dc.identifier.chicagocitation | Funk, Oliver. <i>"Towards A Single Electron Current On Superfluid Helium."</i> ., ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2021. http://hdl.handle.net/11427/35733 | en_ZA |
| dc.identifier.citation | Funk, O. 2021. Towards A Single Electron Current On Superfluid Helium. . ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. http://hdl.handle.net/11427/35733 | en_ZA |
| dc.identifier.ris | TY - Master Thesis AU - Funk, Oliver AB - The aim of this dissertation was to investigate the application of a system of electrons floating above the surface of superfluid helium to the field of single electron transport. Previous work done by Dr Forrest Bradbury at Princeton University (now a collaborator in the group) demonstrated the highly efficient and precise control of packets of electrons floating on the surface of superfluid helium, localised to channels defined in a silicon substrate. Using similar devices and methodologies, the work done in this dissertation investigates whether this modality of electron transport can be effectively applied to deliver a current of single electrons. Single electron devices have numerous applications in the field of metrology and quantum information processing. They allow for measurements to be made of fundamental quantities, such as the charge of an electron, and further demonstrate various quantum mechanical properties of nature. Presented in this dissertation is the work completed to date, which includes: the design and fabrication of the nanoscale device used to conduct the electrons on superfluid helium experiments, the required electronics needed to control the device and the data acquisition system needed to read various signals off the device. The fabrication was done at Oak Ridge National Labs in the USA. Additionally, a hermetically sealed superfluid cell designed in collaboration with Dr Jay Amrit from UniversitĀ“e Paris-Sud, France used to house the device is presented, as well the probe needed to insert this cell into the dilution fridge. The theory behind the functionality of the device and the way in which it would work is developed. A simulation of working of the device is presented, as well as the expected measurement quantities. The outlook for continued work in this exciting and very novel physical system is also presented. DA - 2021_ DB - OpenUCT DP - University of Cape Town KW - Electrical Engineering LK - https://open.uct.ac.za PY - 2021 T1 - Towards A Single Electron Current On Superfluid Helium TI - Towards A Single Electron Current On Superfluid Helium UR - http://hdl.handle.net/11427/35733 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/35733 | |
| dc.identifier.vancouvercitation | Funk O. Towards A Single Electron Current On Superfluid Helium. []. ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2021 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/35733 | en_ZA |
| dc.language.rfc3066 | eng | |
| dc.publisher.department | Department of Electrical Engineering | |
| dc.publisher.faculty | Faculty of Engineering and the Built Environment | |
| dc.subject | Electrical Engineering | |
| dc.title | Towards A Single Electron Current On Superfluid Helium | |
| dc.type | Master Thesis | |
| dc.type.qualificationlevel | Masters | |
| dc.type.qualificationlevel | MSc |