| EPSRC Reference: |
GR/J69370/01 |
| Title: |
EXPERIMENTAL AND THEORETICAL STUDIES OF ION POOLS TRAPPED BELOW THE SURFACE OF SUPERFLUID HELIUM |
| Principal Investigator: |
Vinen, Professor WF |
| Other Investigators: |
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| Project Partners: |
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| Department: |
School of Physics and Astronomy |
| Organisation: |
University of Birmingham |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
19 July 1994 |
Ends: |
18 July 1997 |
Value (£): |
173,223
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Summary on Grant Application Form |
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The proposal relates to the continuation of existing experimental and theoretical work on the behaviour of pools of ions trapped below the surface of superfluid 4He. These pools are interesting for two reasons: they form very simple and clean quasi-two-dimensional systems with precisely known particle interactions; and, because the trapped ions are small spheres, they can be used to study important effects associated with the controlled motion of such a sphere within a superfluid. The system can certainly exist in two phases: a solid phase at low temperatures and a liquid phase at high temperatures; but evidence now exists from both theory and our own recent experiments that there is also an intermediate hexatic phase. Emphasis will be placed in three areas: the study of transverse shear or viscous motion in all three phases; study of the pools as complex systems of coupled anharmonic oscillators subject to noise; and study of processes by which the moving ions can nucleate quantized vortices in the helium.
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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.bham.ac.uk |