| EPSRC Reference: |
GR/R54224/01 |
| Title: |
Semiconductor Quantum Nanoelectronics: Physics and Applications |
| Principal Investigator: |
Pepper, Professor Sir M |
| Other Investigators: |
| Smith, Professor CG |
Ritchie, Professor D |
Linfield, Professor EH |
| Davies, Professor AG |
Thomas, Dr K |
Jones, Dr G |
| Ford, Professor CJB |
Barnes, Professor C |
Jones, Professor G |
| Jones, Dr G |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Physics |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 2001 |
Ends: |
30 September 2005 |
Value (£): |
3,837,487
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| EPSRC Research Topic Classifications: |
| Condensed Matter Physics |
Materials Characterisation |
| Quantum Optics & Information |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Electronics |
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| Panel History: |
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Summary on Grant Application Form |
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The purpose of this application is to allow us to develop extensively the physics and technology of semiconductor quantum nanoelectronics using group 111-V semiconductors. Our motivation is to extract new phenomena in a number of nanoelectronic and low dimensional systems and assess their applicability to the new emerging quantum technologies. The proposal is based on our present and past work which has established the ability to manipulate and measure electron wavefunctions and their consequences to a very high degree. In particular, we propose to investigate effects based on single and small numbers of electrons in simulations where their mutual interaction and quantum entanglement determine their transport properties. One-and-zero-dimensional structures (quantum dots) will be investigated in detail including arrays of such devices (dot molecules and wire arrays). Collective and decohering effects will be significant here as in mesoscopic 2D systems. Here the increasing flexibility of the technology has allowed a significant reduction of disorder such that aspects of conduction in the dilute limit are now emerging.The use of shot noise and quantum statistical techniques will allow the microscopic investigation of strongly interacting systems and fluctuations in single and few electron transport. The quantised acousto-electric effect will be developed to produce a single electron standard giving the charge on the electron to high accuracy, and will be extended to single-photon generation and qubit operation when single and paired electrons are transported .A number of novel technologies for fabricating nanostructures will be of importance and the results of these investigations will be assessed for their applicability to quantum computational and communications.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cam.ac.uk |